28353890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1889}}^1$

素因数の和:1994

約数の個数: 32

約数和(自身を含む): 54432000

約数和(自身を除く): 26078110

約数列:

[1, 2, 5, 10, 19, 38, 79, 95, 158, 190, 395, 790, 1501, 1889, 3002, 3778, 7505, 9445, 15010, 18890, 35891, 71782, 149231, 179455, 298462, 358910, 746155, 1492310, 2835389, 5670778, 14176945, 28353890]

約数ペア:

[(1, 28353890), (2, 14176945), (5, 5670778), (10, 2835389), (19, 1492310), (38, 746155), (79, 358910), (95, 298462), (158, 179455), (190, 149231), (395, 71782), (790, 35891), (1501, 18890), (1889, 15010), (3002, 9445), (3778, 7505)]