9989870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{461}}^1$

素因数の和:676

約数の個数: 32

約数和(自身を含む): 19758816

約数和(自身を除く): 9768946

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 197, 394, 461, 922, 985, 1970, 2167, 2305, 4334, 4610, 5071, 10142, 10835, 21670, 25355, 50710, 90817, 181634, 454085, 908170, 998987, 1997974, 4994935, 9989870]

約数ペア:

[(1, 9989870), (2, 4994935), (5, 1997974), (10, 998987), (11, 908170), (22, 454085), (55, 181634), (110, 90817), (197, 50710), (394, 25355), (461, 21670), (922, 10835), (985, 10142), (1970, 5071), (2167, 4610), (2305, 4334)]