261087228

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{743}}^1$

素因数の和:1023

約数の個数: 72

約数和(自身を含む): 679206528

約数和(自身を除く): 418119300

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 227, 258, 387, 454, 516, 681, 743, 774, 908, 1362, 1486, 1548, 2043, 2229, 2724, 2972, 4086, 4458, 6687, 8172, 8916, 9761, 13374, 19522, 26748, 29283, 31949, 39044, 58566, 63898, 87849, 95847, 117132, 127796, 168661, 175698, 191694, 287541, 337322, 351396, 383388, 505983, 575082, 674644, 1011966, 1150164, 1517949, 2023932, 3035898, 6071796, 7252423, 14504846, 21757269, 29009692, 43514538, 65271807, 87029076, 130543614, 261087228]

約数ペア:

[(1, 261087228), (2, 130543614), (3, 87029076), (4, 65271807), (6, 43514538), (9, 29009692), (12, 21757269), (18, 14504846), (36, 7252423), (43, 6071796), (86, 3035898), (129, 2023932), (172, 1517949), (227, 1150164), (258, 1011966), (387, 674644), (454, 575082), (516, 505983), (681, 383388), (743, 351396), (774, 337322), (908, 287541), (1362, 191694), (1486, 175698), (1548, 168661), (2043, 127796), (2229, 117132), (2724, 95847), (2972, 87849), (4086, 63898), (4458, 58566), (6687, 39044), (8172, 31949), (8916, 29283), (9761, 26748), (13374, 19522)]