645132720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{2688053}}^1$

素因数の和:2688069

約数の個数: 40

約数和(自身を含む): 1999912176

約数和(自身を除く): 1354779456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 2688053, 5376106, 8064159, 10752212, 13440265, 16128318, 21504424, 26880530, 32256636, 40320795, 43008848, 53761060, 64513272, 80641590, 107522120, 129026544, 161283180, 215044240, 322566360, 645132720]

約数ペア:

[(1, 645132720), (2, 322566360), (3, 215044240), (4, 161283180), (5, 129026544), (6, 107522120), (8, 80641590), (10, 64513272), (12, 53761060), (15, 43008848), (16, 40320795), (20, 32256636), (24, 26880530), (30, 21504424), (40, 16128318), (48, 13440265), (60, 10752212), (80, 8064159), (120, 5376106), (240, 2688053)]