20749278825

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{270437}}^1$

素因数の和:270495

約数の個数: 72

約数和(自身を含む): 41850821376

約数和(自身を除く): 21101542551

約数列:

[1, 3, 5, 9, 11, 15, 25, 31, 33, 45, 55, 75, 93, 99, 155, 165, 225, 275, 279, 341, 465, 495, 775, 825, 1023, 1395, 1705, 2325, 2475, 3069, 5115, 6975, 8525, 15345, 25575, 76725, 270437, 811311, 1352185, 2433933, 2974807, 4056555, 6760925, 8383547, 8924421, 12169665, 14874035, 20282775, 25150641, 26773263, 41917735, 44622105, 60848325, 74370175, 75451923, 92219017, 125753205, 133866315, 209588675, 223110525, 276657051, 377259615, 461095085, 628766025, 669331575, 829971153, 1383285255, 1886298075, 2305475425, 4149855765, 6916426275, 20749278825]

約数ペア:

[(1, 20749278825), (3, 6916426275), (5, 4149855765), (9, 2305475425), (11, 1886298075), (15, 1383285255), (25, 829971153), (31, 669331575), (33, 628766025), (45, 461095085), (55, 377259615), (75, 276657051), (93, 223110525), (99, 209588675), (155, 133866315), (165, 125753205), (225, 92219017), (275, 75451923), (279, 74370175), (341, 60848325), (465, 44622105), (495, 41917735), (775, 26773263), (825, 25150641), (1023, 20282775), (1395, 14874035), (1705, 12169665), (2325, 8924421), (2475, 8383547), (3069, 6760925), (5115, 4056555), (6975, 2974807), (8525, 2433933), (15345, 1352185), (25575, 811311), (76725, 270437)]