2578312160

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:425

約数の個数: 192

約数和(自身を含む): 6706022400

約数和(自身を除く): 4127710240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 76, 80, 95, 109, 124, 152, 155, 160, 190, 218, 248, 251, 304, 310, 380, 436, 496, 502, 545, 589, 608, 620, 760, 872, 992, 1004, 1090, 1178, 1240, 1255, 1520, 1744, 2008, 2071, 2180, 2356, 2480, 2510, 2945, 3040, 3379, 3488, 4016, 4142, 4360, 4712, 4769, 4960, 5020, 5890, 6758, 7781, 8032, 8284, 8720, 9424, 9538, 10040, 10355, 11780, 13516, 15562, 16568, 16895, 17440, 18848, 19076, 20080, 20710, 23560, 23845, 27032, 27359, 31124, 33136, 33790, 38152, 38905, 40160, 41420, 47120, 47690, 54064, 54718, 62248, 64201, 66272, 67580, 76304, 77810, 82840, 94240, 95380, 108128, 109436, 124496, 128402, 135160, 136795, 147839, 152608, 155620, 165680, 190760, 218872, 248992, 256804, 270320, 273590, 295678, 311240, 321005, 331360, 381520, 437744, 513608, 519821, 540640, 547180, 591356, 622480, 642010, 739195, 763040, 848129, 875488, 1027216, 1039642, 1094360, 1182712, 1244960, 1284020, 1478390, 1696258, 2054432, 2079284, 2188720, 2365424, 2568040, 2599105, 2956780, 3392516, 4158568, 4240645, 4377440, 4730848, 5136080, 5198210, 5913560, 6785032, 8317136, 8481290, 10272160, 10396420, 11827120, 13570064, 16114451, 16634272, 16962580, 20792840, 23654240, 27140128, 32228902, 33925160, 41585680, 64457804, 67850320, 80572255, 83171360, 128915608, 135700640, 161144510, 257831216, 322289020, 515662432, 644578040, 1289156080, 2578312160]

約数ペア:

[(1, 2578312160), (2, 1289156080), (4, 644578040), (5, 515662432), (8, 322289020), (10, 257831216), (16, 161144510), (19, 135700640), (20, 128915608), (31, 83171360), (32, 80572255), (38, 67850320), (40, 64457804), (62, 41585680), (76, 33925160), (80, 32228902), (95, 27140128), (109, 23654240), (124, 20792840), (152, 16962580), (155, 16634272), (160, 16114451), (190, 13570064), (218, 11827120), (248, 10396420), (251, 10272160), (304, 8481290), (310, 8317136), (380, 6785032), (436, 5913560), (496, 5198210), (502, 5136080), (545, 4730848), (589, 4377440), (608, 4240645), (620, 4158568), (760, 3392516), (872, 2956780), (992, 2599105), (1004, 2568040), (1090, 2365424), (1178, 2188720), (1240, 2079284), (1255, 2054432), (1520, 1696258), (1744, 1478390), (2008, 1284020), (2071, 1244960), (2180, 1182712), (2356, 1094360), (2480, 1039642), (2510, 1027216), (2945, 875488), (3040, 848129), (3379, 763040), (3488, 739195), (4016, 642010), (4142, 622480), (4360, 591356), (4712, 547180), (4769, 540640), (4960, 519821), (5020, 513608), (5890, 437744), (6758, 381520), (7781, 331360), (8032, 321005), (8284, 311240), (8720, 295678), (9424, 273590), (9538, 270320), (10040, 256804), (10355, 248992), (11780, 218872), (13516, 190760), (15562, 165680), (16568, 155620), (16895, 152608), (17440, 147839), (18848, 136795), (19076, 135160), (20080, 128402), (20710, 124496), (23560, 109436), (23845, 108128), (27032, 95380), (27359, 94240), (31124, 82840), (33136, 77810), (33790, 76304), (38152, 67580), (38905, 66272), (40160, 64201), (41420, 62248), (47120, 54718), (47690, 54064)]