18958160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18229}}^1$

素因数の和:18255

約数の個数: 40

約数和(自身を含む): 47470920

約数和(自身を除く): 28512760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18229, 36458, 72916, 91145, 145832, 182290, 236977, 291664, 364580, 473954, 729160, 947908, 1184885, 1458320, 1895816, 2369770, 3791632, 4739540, 9479080, 18958160]

約数ペア:

[(1, 18958160), (2, 9479080), (4, 4739540), (5, 3791632), (8, 2369770), (10, 1895816), (13, 1458320), (16, 1184885), (20, 947908), (26, 729160), (40, 473954), (52, 364580), (65, 291664), (80, 236977), (104, 182290), (130, 145832), (208, 91145), (260, 72916), (520, 36458), (1040, 18229)]