80496005050

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{163129}}^1$

素因数の和:163351

約数の個数: 48

約数和(自身を含む): 152924587200

約数和(自身を除く): 72428582150

約数列:

[1, 2, 5, 10, 25, 50, 71, 139, 142, 278, 355, 695, 710, 1390, 1775, 3475, 3550, 6950, 9869, 19738, 49345, 98690, 163129, 246725, 326258, 493450, 815645, 1631290, 4078225, 8156450, 11582159, 22674931, 23164318, 45349862, 57910795, 113374655, 115821590, 226749310, 289553975, 566873275, 579107950, 1133746550, 1609920101, 3219840202, 8049600505, 16099201010, 40248002525, 80496005050]

約数ペア:

[(1, 80496005050), (2, 40248002525), (5, 16099201010), (10, 8049600505), (25, 3219840202), (50, 1609920101), (71, 1133746550), (139, 579107950), (142, 566873275), (278, 289553975), (355, 226749310), (695, 115821590), (710, 113374655), (1390, 57910795), (1775, 45349862), (3475, 23164318), (3550, 22674931), (6950, 11582159), (9869, 8156450), (19738, 4078225), (49345, 1631290), (98690, 815645), (163129, 493450), (246725, 326258)]