16161020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{599}}^1$

素因数の和:698

約数の個数: 48

約数和(自身を含む): 36288000

約数和(自身を除く): 20126980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 599, 710, 1198, 1349, 1420, 2396, 2698, 2995, 5396, 5990, 6745, 11381, 11980, 13490, 22762, 26980, 42529, 45524, 56905, 85058, 113810, 170116, 212645, 227620, 425290, 808051, 850580, 1616102, 3232204, 4040255, 8080510, 16161020]

約数ペア:

[(1, 16161020), (2, 8080510), (4, 4040255), (5, 3232204), (10, 1616102), (19, 850580), (20, 808051), (38, 425290), (71, 227620), (76, 212645), (95, 170116), (142, 113810), (190, 85058), (284, 56905), (355, 45524), (380, 42529), (599, 26980), (710, 22762), (1198, 13490), (1349, 11980), (1420, 11381), (2396, 6745), (2698, 5990), (2995, 5396)]