20280720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{84503}}^1$

素因数の和:84519

約数の個数: 40

約数和(自身を含む): 62870976

約数和(自身を除く): 42590256

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 84503, 169006, 253509, 338012, 422515, 507018, 676024, 845030, 1014036, 1267545, 1352048, 1690060, 2028072, 2535090, 3380120, 4056144, 5070180, 6760240, 10140360, 20280720]

約数ペア:

[(1, 20280720), (2, 10140360), (3, 6760240), (4, 5070180), (5, 4056144), (6, 3380120), (8, 2535090), (10, 2028072), (12, 1690060), (15, 1352048), (16, 1267545), (20, 1014036), (24, 845030), (30, 676024), (40, 507018), (48, 422515), (60, 338012), (80, 253509), (120, 169006), (240, 84503)]