18557950

素因数分解:

$2^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:261

約数の個数: 48

約数和(自身を含む): 36158400

約数和(自身を除く): 17600450

約数列:

[1, 2, 5, 10, 25, 47, 50, 53, 94, 106, 149, 235, 265, 298, 470, 530, 745, 1175, 1325, 1490, 2350, 2491, 2650, 3725, 4982, 7003, 7450, 7897, 12455, 14006, 15794, 24910, 35015, 39485, 62275, 70030, 78970, 124550, 175075, 197425, 350150, 371159, 394850, 742318, 1855795, 3711590, 9278975, 18557950]

約数ペア:

[(1, 18557950), (2, 9278975), (5, 3711590), (10, 1855795), (25, 742318), (47, 394850), (50, 371159), (53, 350150), (94, 197425), (106, 175075), (149, 124550), (235, 78970), (265, 70030), (298, 62275), (470, 39485), (530, 35015), (745, 24910), (1175, 15794), (1325, 14006), (1490, 12455), (2350, 7897), (2491, 7450), (2650, 7003), (3725, 4982)]