64664080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{641}}^1$

素因数の和:764

約数の個数: 80

約数和(自身を含む): 163833264

約数和(自身を除く): 99169184

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 130, 194, 208, 260, 388, 485, 520, 641, 776, 970, 1040, 1261, 1282, 1552, 1940, 2522, 2564, 3205, 3880, 5044, 5128, 6305, 6410, 7760, 8333, 10088, 10256, 12610, 12820, 16666, 20176, 25220, 25640, 33332, 41665, 50440, 51280, 62177, 66664, 83330, 100880, 124354, 133328, 166660, 248708, 310885, 333320, 497416, 621770, 666640, 808301, 994832, 1243540, 1616602, 2487080, 3233204, 4041505, 4974160, 6466408, 8083010, 12932816, 16166020, 32332040, 64664080]

約数ペア:

[(1, 64664080), (2, 32332040), (4, 16166020), (5, 12932816), (8, 8083010), (10, 6466408), (13, 4974160), (16, 4041505), (20, 3233204), (26, 2487080), (40, 1616602), (52, 1243540), (65, 994832), (80, 808301), (97, 666640), (104, 621770), (130, 497416), (194, 333320), (208, 310885), (260, 248708), (388, 166660), (485, 133328), (520, 124354), (641, 100880), (776, 83330), (970, 66664), (1040, 62177), (1261, 51280), (1282, 50440), (1552, 41665), (1940, 33332), (2522, 25640), (2564, 25220), (3205, 20176), (3880, 16666), (5044, 12820), (5128, 12610), (6305, 10256), (6410, 10088), (7760, 8333)]