678542920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{9461}}^1$

素因数の和:9646

約数の個数: 64

約数和(自身を含む): 1675909440

約数和(自身を除く): 997366520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 163, 220, 326, 440, 652, 815, 1304, 1630, 1793, 3260, 3586, 6520, 7172, 8965, 9461, 14344, 17930, 18922, 35860, 37844, 47305, 71720, 75688, 94610, 104071, 189220, 208142, 378440, 416284, 520355, 832568, 1040710, 1542143, 2081420, 3084286, 4162840, 6168572, 7710715, 12337144, 15421430, 16963573, 30842860, 33927146, 61685720, 67854292, 84817865, 135708584, 169635730, 339271460, 678542920]

約数ペア:

[(1, 678542920), (2, 339271460), (4, 169635730), (5, 135708584), (8, 84817865), (10, 67854292), (11, 61685720), (20, 33927146), (22, 30842860), (40, 16963573), (44, 15421430), (55, 12337144), (88, 7710715), (110, 6168572), (163, 4162840), (220, 3084286), (326, 2081420), (440, 1542143), (652, 1040710), (815, 832568), (1304, 520355), (1630, 416284), (1793, 378440), (3260, 208142), (3586, 189220), (6520, 104071), (7172, 94610), (8965, 75688), (9461, 71720), (14344, 47305), (17930, 37844), (18922, 35860)]