661010520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{177691}}^1$

素因数の和:177736

約数の個数: 64

約数和(自身を含む): 2047011840

約数和(自身を除く): 1386001320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 177691, 355382, 533073, 710764, 888455, 1066146, 1421528, 1776910, 2132292, 2665365, 3553820, 4264584, 5330730, 5508421, 7107640, 10661460, 11016842, 16525263, 21322920, 22033684, 27542105, 33050526, 44067368, 55084210, 66101052, 82626315, 110168420, 132202104, 165252630, 220336840, 330505260, 661010520]

約数ペア:

[(1, 661010520), (2, 330505260), (3, 220336840), (4, 165252630), (5, 132202104), (6, 110168420), (8, 82626315), (10, 66101052), (12, 55084210), (15, 44067368), (20, 33050526), (24, 27542105), (30, 22033684), (31, 21322920), (40, 16525263), (60, 11016842), (62, 10661460), (93, 7107640), (120, 5508421), (124, 5330730), (155, 4264584), (186, 3553820), (248, 2665365), (310, 2132292), (372, 1776910), (465, 1421528), (620, 1066146), (744, 888455), (930, 710764), (1240, 533073), (1860, 355382), (3720, 177691)]