20783969240

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2902789}}^1$

素因数の和:2902979

約数の個数: 32

約数和(自身を含む): 47025198000

約数和(自身を除く): 26241228760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 3580, 7160, 2902789, 5805578, 11611156, 14513945, 23222312, 29027890, 58055780, 116111560, 519599231, 1039198462, 2078396924, 2597996155, 4156793848, 5195992310, 10391984620, 20783969240]

約数ペア:

[(1, 20783969240), (2, 10391984620), (4, 5195992310), (5, 4156793848), (8, 2597996155), (10, 2078396924), (20, 1039198462), (40, 519599231), (179, 116111560), (358, 58055780), (716, 29027890), (895, 23222312), (1432, 14513945), (1790, 11611156), (3580, 5805578), (7160, 2902789)]