20565118840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:426

約数の個数: 256

約数和(自身を含む): 55472947200

約数和(自身を除く): 34907828360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 79, 94, 131, 140, 151, 158, 188, 235, 262, 280, 302, 316, 329, 376, 395, 470, 524, 553, 604, 632, 655, 658, 755, 790, 917, 940, 1048, 1057, 1106, 1208, 1310, 1316, 1510, 1580, 1645, 1834, 1880, 2114, 2212, 2620, 2632, 2765, 3020, 3160, 3290, 3668, 3713, 4228, 4424, 4585, 5240, 5285, 5530, 6040, 6157, 6580, 7097, 7336, 7426, 8456, 9170, 10349, 10570, 11060, 11929, 12314, 13160, 14194, 14852, 18340, 18565, 19781, 20698, 21140, 22120, 23858, 24628, 25991, 28388, 29704, 30785, 35485, 36680, 37130, 39562, 41396, 42280, 43099, 47716, 49256, 49679, 51745, 51982, 56776, 59645, 61570, 70970, 72443, 74260, 79124, 82792, 83503, 86198, 95432, 98905, 99358, 103490, 103964, 119290, 123140, 129955, 138467, 141940, 144886, 148520, 158248, 167006, 172396, 197810, 198716, 206980, 207928, 215495, 238580, 246280, 248395, 259910, 276934, 283880, 289772, 334012, 344792, 362215, 395620, 397432, 413960, 417515, 430990, 477160, 486403, 496790, 519820, 553868, 560663, 579544, 668024, 692335, 724430, 791240, 835030, 861980, 929707, 972806, 993580, 1039640, 1107736, 1121326, 1384670, 1448860, 1562699, 1670060, 1723960, 1859414, 1945612, 1987160, 2242652, 2432015, 2769340, 2803315, 2897720, 3125398, 3340120, 3404821, 3718828, 3891224, 3924641, 4485304, 4648535, 4864030, 5538680, 5606630, 6250796, 6507949, 6809642, 7437656, 7813495, 7849282, 9297070, 9728060, 10938893, 11213260, 12501592, 13015898, 13619284, 15626990, 15698564, 17024105, 18594140, 19456120, 19623205, 21877786, 22426520, 26031796, 27238568, 31253980, 31397128, 32539745, 34048210, 37188280, 39246410, 43755572, 52063592, 54694465, 62507960, 65079490, 68096420, 73446853, 78492820, 87511144, 109388930, 130158980, 136192840, 146893706, 156985640, 218777860, 260317960, 293787412, 367234265, 437555720, 514127971, 587574824, 734468530, 1028255942, 1468937060, 2056511884, 2570639855, 2937874120, 4113023768, 5141279710, 10282559420, 20565118840]

約数ペア:

[(1, 20565118840), (2, 10282559420), (4, 5141279710), (5, 4113023768), (7, 2937874120), (8, 2570639855), (10, 2056511884), (14, 1468937060), (20, 1028255942), (28, 734468530), (35, 587574824), (40, 514127971), (47, 437555720), (56, 367234265), (70, 293787412), (79, 260317960), (94, 218777860), (131, 156985640), (140, 146893706), (151, 136192840), (158, 130158980), (188, 109388930), (235, 87511144), (262, 78492820), (280, 73446853), (302, 68096420), (316, 65079490), (329, 62507960), (376, 54694465), (395, 52063592), (470, 43755572), (524, 39246410), (553, 37188280), (604, 34048210), (632, 32539745), (655, 31397128), (658, 31253980), (755, 27238568), (790, 26031796), (917, 22426520), (940, 21877786), (1048, 19623205), (1057, 19456120), (1106, 18594140), (1208, 17024105), (1310, 15698564), (1316, 15626990), (1510, 13619284), (1580, 13015898), (1645, 12501592), (1834, 11213260), (1880, 10938893), (2114, 9728060), (2212, 9297070), (2620, 7849282), (2632, 7813495), (2765, 7437656), (3020, 6809642), (3160, 6507949), (3290, 6250796), (3668, 5606630), (3713, 5538680), (4228, 4864030), (4424, 4648535), (4585, 4485304), (5240, 3924641), (5285, 3891224), (5530, 3718828), (6040, 3404821), (6157, 3340120), (6580, 3125398), (7097, 2897720), (7336, 2803315), (7426, 2769340), (8456, 2432015), (9170, 2242652), (10349, 1987160), (10570, 1945612), (11060, 1859414), (11929, 1723960), (12314, 1670060), (13160, 1562699), (14194, 1448860), (14852, 1384670), (18340, 1121326), (18565, 1107736), (19781, 1039640), (20698, 993580), (21140, 972806), (22120, 929707), (23858, 861980), (24628, 835030), (25991, 791240), (28388, 724430), (29704, 692335), (30785, 668024), (35485, 579544), (36680, 560663), (37130, 553868), (39562, 519820), (41396, 496790), (42280, 486403), (43099, 477160), (47716, 430990), (49256, 417515), (49679, 413960), (51745, 397432), (51982, 395620), (56776, 362215), (59645, 344792), (61570, 334012), (70970, 289772), (72443, 283880), (74260, 276934), (79124, 259910), (82792, 248395), (83503, 246280), (86198, 238580), (95432, 215495), (98905, 207928), (99358, 206980), (103490, 198716), (103964, 197810), (119290, 172396), (123140, 167006), (129955, 158248), (138467, 148520), (141940, 144886)]