18438160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17729}}^1$

素因数の和:17755

約数の個数: 40

約数和(自身を含む): 46168920

約数和(自身を除く): 27730760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17729, 35458, 70916, 88645, 141832, 177290, 230477, 283664, 354580, 460954, 709160, 921908, 1152385, 1418320, 1843816, 2304770, 3687632, 4609540, 9219080, 18438160]

約数ペア:

[(1, 18438160), (2, 9219080), (4, 4609540), (5, 3687632), (8, 2304770), (10, 1843816), (13, 1418320), (16, 1152385), (20, 921908), (26, 709160), (40, 460954), (52, 354580), (65, 283664), (80, 230477), (104, 177290), (130, 141832), (208, 88645), (260, 70916), (520, 35458), (1040, 17729)]