90388020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1511}}^1$

素因数の和:2520

約数の個数: 48

約数和(自身を含む): 253507968

約数和(自身を除く): 163119948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 997, 1511, 1994, 2991, 3022, 3988, 4533, 4985, 5982, 6044, 7555, 9066, 9970, 11964, 14955, 15110, 18132, 19940, 22665, 29910, 30220, 45330, 59820, 90660, 1506467, 3012934, 4519401, 6025868, 7532335, 9038802, 15064670, 18077604, 22597005, 30129340, 45194010, 90388020]

約数ペア:

[(1, 90388020), (2, 45194010), (3, 30129340), (4, 22597005), (5, 18077604), (6, 15064670), (10, 9038802), (12, 7532335), (15, 6025868), (20, 4519401), (30, 3012934), (60, 1506467), (997, 90660), (1511, 59820), (1994, 45330), (2991, 30220), (3022, 29910), (3988, 22665), (4533, 19940), (4985, 18132), (5982, 15110), (6044, 14955), (7555, 11964), (9066, 9970)]