20378730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 30424470

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 94, 97, 141, 149, 194, 235, 282, 291, 298, 447, 470, 485, 582, 705, 745, 894, 970, 1410, 1455, 1490, 2235, 2910, 4470, 4559, 7003, 9118, 13677, 14006, 14453, 21009, 22795, 27354, 28906, 35015, 42018, 43359, 45590, 68385, 70030, 72265, 86718, 105045, 136770, 144530, 210090, 216795, 433590, 679291, 1358582, 2037873, 3396455, 4075746, 6792910, 10189365, 20378730]

約数ペア:

[(1, 20378730), (2, 10189365), (3, 6792910), (5, 4075746), (6, 3396455), (10, 2037873), (15, 1358582), (30, 679291), (47, 433590), (94, 216795), (97, 210090), (141, 144530), (149, 136770), (194, 105045), (235, 86718), (282, 72265), (291, 70030), (298, 68385), (447, 45590), (470, 43359), (485, 42018), (582, 35015), (705, 28906), (745, 27354), (894, 22795), (970, 21009), (1410, 14453), (1455, 14006), (1490, 13677), (2235, 9118), (2910, 7003), (4470, 4559)]