165840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{691}}^1$

素因数の和:707

約数の個数: 40

約数和(自身を含む): 514848

約数和(自身を除く): 349008

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 691, 1382, 2073, 2764, 3455, 4146, 5528, 6910, 8292, 10365, 11056, 13820, 16584, 20730, 27640, 33168, 41460, 55280, 82920, 165840]

約数ペア:

[(1, 165840), (2, 82920), (3, 55280), (4, 41460), (5, 33168), (6, 27640), (8, 20730), (10, 16584), (12, 13820), (15, 11056), (16, 10365), (20, 8292), (24, 6910), (30, 5528), (40, 4146), (48, 3455), (60, 2764), (80, 2073), (120, 1382), (240, 691)]