1816340

素因数分解:

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

素因数の和:667

約数の個数: 24

約数和(自身を含む): 3841992

約数和(自身を除く): 2025652

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 461, 788, 922, 985, 1844, 1970, 2305, 3940, 4610, 9220, 90817, 181634, 363268, 454085, 908170, 1816340]

約数ペア:

[(1, 1816340), (2, 908170), (4, 454085), (5, 363268), (10, 181634), (20, 90817), (197, 9220), (394, 4610), (461, 3940), (788, 2305), (922, 1970), (985, 1844)]