18271760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17569}}^1$

素因数の和:17595

約数の個数: 40

約数和(自身を含む): 45752280

約数和(自身を除く): 27480520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17569, 35138, 70276, 87845, 140552, 175690, 228397, 281104, 351380, 456794, 702760, 913588, 1141985, 1405520, 1827176, 2283970, 3654352, 4567940, 9135880, 18271760]

約数ペア:

[(1, 18271760), (2, 9135880), (4, 4567940), (5, 3654352), (8, 2283970), (10, 1827176), (13, 1405520), (16, 1141985), (20, 913588), (26, 702760), (40, 456794), (52, 351380), (65, 281104), (80, 228397), (104, 175690), (130, 140552), (208, 87845), (260, 70276), (520, 35138), (1040, 17569)]