20712380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:159

約数の個数: 96

約数和(自身を含む): 50379840

約数和(自身を除く): 29667460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 41, 52, 58, 65, 67, 82, 116, 130, 134, 145, 164, 205, 260, 268, 290, 335, 377, 410, 533, 580, 670, 754, 820, 871, 1066, 1189, 1340, 1508, 1742, 1885, 1943, 2132, 2378, 2665, 2747, 3484, 3770, 3886, 4355, 4756, 5330, 5494, 5945, 7540, 7772, 8710, 9715, 10660, 10988, 11890, 13735, 15457, 17420, 19430, 23780, 25259, 27470, 30914, 35711, 38860, 50518, 54940, 61828, 71422, 77285, 79663, 101036, 126295, 142844, 154570, 159326, 178555, 252590, 309140, 318652, 357110, 398315, 505180, 714220, 796630, 1035619, 1593260, 2071238, 4142476, 5178095, 10356190, 20712380]

約数ペア:

[(1, 20712380), (2, 10356190), (4, 5178095), (5, 4142476), (10, 2071238), (13, 1593260), (20, 1035619), (26, 796630), (29, 714220), (41, 505180), (52, 398315), (58, 357110), (65, 318652), (67, 309140), (82, 252590), (116, 178555), (130, 159326), (134, 154570), (145, 142844), (164, 126295), (205, 101036), (260, 79663), (268, 77285), (290, 71422), (335, 61828), (377, 54940), (410, 50518), (533, 38860), (580, 35711), (670, 30914), (754, 27470), (820, 25259), (871, 23780), (1066, 19430), (1189, 17420), (1340, 15457), (1508, 13735), (1742, 11890), (1885, 10988), (1943, 10660), (2132, 9715), (2378, 8710), (2665, 7772), (2747, 7540), (3484, 5945), (3770, 5494), (3886, 5330), (4355, 4756)]