90206520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1531}}^1$

素因数の和:2036

約数の個数: 64

約数和(自身を含む): 271347840

約数和(自身を除く): 181141320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 491, 982, 1473, 1531, 1964, 2455, 2946, 3062, 3928, 4593, 4910, 5892, 6124, 7365, 7655, 9186, 9820, 11784, 12248, 14730, 15310, 18372, 19640, 22965, 29460, 30620, 36744, 45930, 58920, 61240, 91860, 183720, 751721, 1503442, 2255163, 3006884, 3758605, 4510326, 6013768, 7517210, 9020652, 11275815, 15034420, 18041304, 22551630, 30068840, 45103260, 90206520]

約数ペア:

[(1, 90206520), (2, 45103260), (3, 30068840), (4, 22551630), (5, 18041304), (6, 15034420), (8, 11275815), (10, 9020652), (12, 7517210), (15, 6013768), (20, 4510326), (24, 3758605), (30, 3006884), (40, 2255163), (60, 1503442), (120, 751721), (491, 183720), (982, 91860), (1473, 61240), (1531, 58920), (1964, 45930), (2455, 36744), (2946, 30620), (3062, 29460), (3928, 22965), (4593, 19640), (4910, 18372), (5892, 15310), (6124, 14730), (7365, 12248), (7655, 11784), (9186, 9820)]