78184876

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{491}}^1$

素因数の和:571

約数の個数: 72

約数和(自身を含む): 175891968

約数和(自身を除く): 97707092

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 47, 77, 94, 121, 154, 188, 242, 308, 329, 484, 491, 517, 658, 847, 982, 1034, 1316, 1694, 1964, 2068, 3388, 3437, 3619, 5401, 5687, 6874, 7238, 10802, 11374, 13748, 14476, 21604, 22748, 23077, 37807, 39809, 46154, 59411, 75614, 79618, 92308, 118822, 151228, 159236, 161539, 237644, 253847, 323078, 415877, 507694, 646156, 831754, 1015388, 1663508, 1776929, 2792317, 3553858, 5584634, 7107716, 11169268, 19546219, 39092438, 78184876]

約数ペア:

[(1, 78184876), (2, 39092438), (4, 19546219), (7, 11169268), (11, 7107716), (14, 5584634), (22, 3553858), (28, 2792317), (44, 1776929), (47, 1663508), (77, 1015388), (94, 831754), (121, 646156), (154, 507694), (188, 415877), (242, 323078), (308, 253847), (329, 237644), (484, 161539), (491, 159236), (517, 151228), (658, 118822), (847, 92308), (982, 79618), (1034, 75614), (1316, 59411), (1694, 46154), (1964, 39809), (2068, 37807), (3388, 23077), (3437, 22748), (3619, 21604), (5401, 14476), (5687, 13748), (6874, 11374), (7238, 10802)]