8674780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 19051200

約数和(自身を除く): 10376420

約数列:

[1, 2, 4, 5, 10, 20, 41, 71, 82, 142, 149, 164, 205, 284, 298, 355, 410, 596, 710, 745, 820, 1420, 1490, 2911, 2980, 5822, 6109, 10579, 11644, 12218, 14555, 21158, 24436, 29110, 30545, 42316, 52895, 58220, 61090, 105790, 122180, 211580, 433739, 867478, 1734956, 2168695, 4337390, 8674780]

約数ペア:

[(1, 8674780), (2, 4337390), (4, 2168695), (5, 1734956), (10, 867478), (20, 433739), (41, 211580), (71, 122180), (82, 105790), (142, 61090), (149, 58220), (164, 52895), (205, 42316), (284, 30545), (298, 29110), (355, 24436), (410, 21158), (596, 14555), (710, 12218), (745, 11644), (820, 10579), (1420, 6109), (1490, 5822), (2911, 2980)]