18890330

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 35126784

約数和(自身を除く): 16236454

約数列:

[1, 2, 5, 10, 43, 86, 197, 215, 223, 394, 430, 446, 985, 1115, 1970, 2230, 8471, 9589, 16942, 19178, 42355, 43931, 47945, 84710, 87862, 95890, 219655, 439310, 1889033, 3778066, 9445165, 18890330]

約数ペア:

[(1, 18890330), (2, 9445165), (5, 3778066), (10, 1889033), (43, 439310), (86, 219655), (197, 95890), (215, 87862), (223, 84710), (394, 47945), (430, 43931), (446, 42355), (985, 19178), (1115, 16942), (1970, 9589), (2230, 8471)]