20328770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1553}}^1$

素因数の和:1595

約数の個数: 64

約数和(自身を含む): 48335616

約数和(自身を除く): 28006846

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 22, 34, 35, 55, 70, 77, 85, 110, 119, 154, 170, 187, 238, 374, 385, 595, 770, 935, 1190, 1309, 1553, 1870, 2618, 3106, 6545, 7765, 10871, 13090, 15530, 17083, 21742, 26401, 34166, 52802, 54355, 85415, 108710, 119581, 132005, 170830, 184807, 239162, 264010, 290411, 369614, 580822, 597905, 924035, 1195810, 1452055, 1848070, 2032877, 2904110, 4065754, 10164385, 20328770]

約数ペア:

[(1, 20328770), (2, 10164385), (5, 4065754), (7, 2904110), (10, 2032877), (11, 1848070), (14, 1452055), (17, 1195810), (22, 924035), (34, 597905), (35, 580822), (55, 369614), (70, 290411), (77, 264010), (85, 239162), (110, 184807), (119, 170830), (154, 132005), (170, 119581), (187, 108710), (238, 85415), (374, 54355), (385, 52802), (595, 34166), (770, 26401), (935, 21742), (1190, 17083), (1309, 15530), (1553, 13090), (1870, 10871), (2618, 7765), (3106, 6545)]