31099420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 73198944

約数和(自身を除く): 42099524

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 121, 142, 181, 220, 242, 284, 355, 362, 484, 605, 710, 724, 781, 905, 1210, 1420, 1562, 1810, 1991, 2420, 3124, 3620, 3905, 3982, 7810, 7964, 8591, 9955, 12851, 15620, 17182, 19910, 21901, 25702, 34364, 39820, 42955, 43802, 51404, 64255, 85910, 87604, 109505, 128510, 141361, 171820, 219010, 257020, 282722, 438020, 565444, 706805, 1413610, 1554971, 2827220, 3109942, 6219884, 7774855, 15549710, 31099420]

約数ペア:

[(1, 31099420), (2, 15549710), (4, 7774855), (5, 6219884), (10, 3109942), (11, 2827220), (20, 1554971), (22, 1413610), (44, 706805), (55, 565444), (71, 438020), (110, 282722), (121, 257020), (142, 219010), (181, 171820), (220, 141361), (242, 128510), (284, 109505), (355, 87604), (362, 85910), (484, 64255), (605, 51404), (710, 43802), (724, 42955), (781, 39820), (905, 34364), (1210, 25702), (1420, 21901), (1562, 19910), (1810, 17182), (1991, 15620), (2420, 12851), (3124, 9955), (3620, 8591), (3905, 7964), (3982, 7810)]