9903190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{457}}^1$

素因数の和:672

約数の個数: 32

約数和(自身を含む): 19587744

約数和(自身を除く): 9684554

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 197, 394, 457, 914, 985, 1970, 2167, 2285, 4334, 4570, 5027, 10054, 10835, 21670, 25135, 50270, 90029, 180058, 450145, 900290, 990319, 1980638, 4951595, 9903190]

約数ペア:

[(1, 9903190), (2, 4951595), (5, 1980638), (10, 990319), (11, 900290), (22, 450145), (55, 180058), (110, 90029), (197, 50270), (394, 25135), (457, 21670), (914, 10835), (985, 10054), (1970, 5027), (2167, 4570), (2285, 4334)]