20679480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:174

約数の個数: 192

約数和(自身を含む): 74131200

約数和(自身を除く): 53451720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 31, 34, 36, 40, 45, 51, 60, 62, 68, 72, 85, 90, 93, 102, 109, 120, 124, 136, 153, 155, 170, 180, 186, 204, 218, 248, 255, 279, 306, 310, 327, 340, 360, 372, 408, 436, 465, 510, 527, 545, 558, 612, 620, 654, 680, 744, 765, 872, 930, 981, 1020, 1054, 1090, 1116, 1224, 1240, 1308, 1395, 1530, 1581, 1635, 1853, 1860, 1962, 2040, 2108, 2180, 2232, 2616, 2635, 2790, 3060, 3162, 3270, 3379, 3706, 3720, 3924, 4216, 4360, 4743, 4905, 5270, 5559, 5580, 6120, 6324, 6540, 6758, 7412, 7848, 7905, 9265, 9486, 9810, 10137, 10540, 11118, 11160, 12648, 13080, 13516, 14824, 15810, 16677, 16895, 18530, 18972, 19620, 20274, 21080, 22236, 23715, 27032, 27795, 30411, 31620, 33354, 33790, 37060, 37944, 39240, 40548, 44472, 47430, 50685, 55590, 57443, 60822, 63240, 66708, 67580, 74120, 81096, 83385, 94860, 101370, 111180, 114886, 121644, 133416, 135160, 152055, 166770, 172329, 189720, 202740, 222360, 229772, 243288, 287215, 304110, 333540, 344658, 405480, 459544, 516987, 574430, 608220, 667080, 689316, 861645, 1033974, 1148860, 1216440, 1378632, 1723290, 2067948, 2297720, 2584935, 3446580, 4135896, 5169870, 6893160, 10339740, 20679480]

約数ペア:

[(1, 20679480), (2, 10339740), (3, 6893160), (4, 5169870), (5, 4135896), (6, 3446580), (8, 2584935), (9, 2297720), (10, 2067948), (12, 1723290), (15, 1378632), (17, 1216440), (18, 1148860), (20, 1033974), (24, 861645), (30, 689316), (31, 667080), (34, 608220), (36, 574430), (40, 516987), (45, 459544), (51, 405480), (60, 344658), (62, 333540), (68, 304110), (72, 287215), (85, 243288), (90, 229772), (93, 222360), (102, 202740), (109, 189720), (120, 172329), (124, 166770), (136, 152055), (153, 135160), (155, 133416), (170, 121644), (180, 114886), (186, 111180), (204, 101370), (218, 94860), (248, 83385), (255, 81096), (279, 74120), (306, 67580), (310, 66708), (327, 63240), (340, 60822), (360, 57443), (372, 55590), (408, 50685), (436, 47430), (465, 44472), (510, 40548), (527, 39240), (545, 37944), (558, 37060), (612, 33790), (620, 33354), (654, 31620), (680, 30411), (744, 27795), (765, 27032), (872, 23715), (930, 22236), (981, 21080), (1020, 20274), (1054, 19620), (1090, 18972), (1116, 18530), (1224, 16895), (1240, 16677), (1308, 15810), (1395, 14824), (1530, 13516), (1581, 13080), (1635, 12648), (1853, 11160), (1860, 11118), (1962, 10540), (2040, 10137), (2108, 9810), (2180, 9486), (2232, 9265), (2616, 7905), (2635, 7848), (2790, 7412), (3060, 6758), (3162, 6540), (3270, 6324), (3379, 6120), (3706, 5580), (3720, 5559), (3924, 5270), (4216, 4905), (4360, 4743)]