826206580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{11321}}^1$

素因数の和:11460

約数の個数: 48

約数和(自身を含む): 1797480720

約数和(自身を除く): 971274140

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 178, 205, 356, 410, 445, 820, 890, 1780, 3649, 7298, 11321, 14596, 18245, 22642, 36490, 45284, 56605, 72980, 113210, 226420, 464161, 928322, 1007569, 1856644, 2015138, 2320805, 4030276, 4641610, 5037845, 9283220, 10075690, 20151380, 41310329, 82620658, 165241316, 206551645, 413103290, 826206580]

約数ペア:

[(1, 826206580), (2, 413103290), (4, 206551645), (5, 165241316), (10, 82620658), (20, 41310329), (41, 20151380), (82, 10075690), (89, 9283220), (164, 5037845), (178, 4641610), (205, 4030276), (356, 2320805), (410, 2015138), (445, 1856644), (820, 1007569), (890, 928322), (1780, 464161), (3649, 226420), (7298, 113210), (11321, 72980), (14596, 56605), (18245, 45284), (22642, 36490)]