188754920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{66463}}^1$

素因数の和:66545

約数の個数: 32

約数和(自身を含む): 430686720

約数和(自身を除く): 241931800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 66463, 132926, 265852, 332315, 531704, 664630, 1329260, 2658520, 4718873, 9437746, 18875492, 23594365, 37750984, 47188730, 94377460, 188754920]

約数ペア:

[(1, 188754920), (2, 94377460), (4, 47188730), (5, 37750984), (8, 23594365), (10, 18875492), (20, 9437746), (40, 4718873), (71, 2658520), (142, 1329260), (284, 664630), (355, 531704), (568, 332315), (710, 265852), (1420, 132926), (2840, 66463)]