140806490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 284601600

約数和(自身を除く): 143795110

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 121, 142, 149, 242, 298, 355, 605, 710, 745, 781, 1210, 1331, 1490, 1562, 1639, 2662, 3278, 3905, 6655, 7810, 8195, 8591, 10579, 13310, 16390, 17182, 18029, 21158, 36058, 42955, 52895, 85910, 90145, 94501, 105790, 116369, 180290, 189002, 198319, 232738, 396638, 472505, 581845, 945010, 991595, 1163690, 1280059, 1983190, 2560118, 6400295, 12800590, 14080649, 28161298, 70403245, 140806490]

約数ペア:

[(1, 140806490), (2, 70403245), (5, 28161298), (10, 14080649), (11, 12800590), (22, 6400295), (55, 2560118), (71, 1983190), (110, 1280059), (121, 1163690), (142, 991595), (149, 945010), (242, 581845), (298, 472505), (355, 396638), (605, 232738), (710, 198319), (745, 189002), (781, 180290), (1210, 116369), (1331, 105790), (1490, 94501), (1562, 90145), (1639, 85910), (2662, 52895), (3278, 42955), (3905, 36058), (6655, 21158), (7810, 18029), (8195, 17182), (8591, 16390), (10579, 13310)]