15425820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1993}}^1$

素因数の和:2051

約数の個数: 72

約数和(自身を含む): 47903856

約数和(自身を除く): 32478036

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 1993, 2580, 3870, 3986, 5979, 7740, 7972, 9965, 11958, 17937, 19930, 23916, 29895, 35874, 39860, 59790, 71748, 85699, 89685, 119580, 171398, 179370, 257097, 342796, 358740, 428495, 514194, 771291, 856990, 1028388, 1285485, 1542582, 1713980, 2570970, 3085164, 3856455, 5141940, 7712910, 15425820]

約数ペア:

[(1, 15425820), (2, 7712910), (3, 5141940), (4, 3856455), (5, 3085164), (6, 2570970), (9, 1713980), (10, 1542582), (12, 1285485), (15, 1028388), (18, 856990), (20, 771291), (30, 514194), (36, 428495), (43, 358740), (45, 342796), (60, 257097), (86, 179370), (90, 171398), (129, 119580), (172, 89685), (180, 85699), (215, 71748), (258, 59790), (387, 39860), (430, 35874), (516, 29895), (645, 23916), (774, 19930), (860, 17937), (1290, 11958), (1548, 9965), (1935, 7972), (1993, 7740), (2580, 5979), (3870, 3986)]