15840770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:275

約数の個数: 64

約数和(自身を含む): 33872256

約数和(自身を除く): 18031486

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 43, 55, 85, 86, 110, 170, 187, 197, 215, 374, 394, 430, 473, 731, 935, 946, 985, 1462, 1870, 1970, 2167, 2365, 3349, 3655, 4334, 4730, 6698, 7310, 8041, 8471, 10835, 16082, 16745, 16942, 21670, 33490, 36839, 40205, 42355, 73678, 80410, 84710, 93181, 144007, 184195, 186362, 288014, 368390, 465905, 720035, 931810, 1440070, 1584077, 3168154, 7920385, 15840770]

約数ペア:

[(1, 15840770), (2, 7920385), (5, 3168154), (10, 1584077), (11, 1440070), (17, 931810), (22, 720035), (34, 465905), (43, 368390), (55, 288014), (85, 186362), (86, 184195), (110, 144007), (170, 93181), (187, 84710), (197, 80410), (215, 73678), (374, 42355), (394, 40205), (430, 36839), (473, 33490), (731, 21670), (935, 16942), (946, 16745), (985, 16082), (1462, 10835), (1870, 8471), (1970, 8041), (2167, 7310), (2365, 6698), (3349, 4730), (3655, 4334)]