20147458220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{571397}}^1$

素因数の和:571490

約数の個数: 48

約数和(自身を含む): 44349627168

約数和(自身を除く): 24202168948

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 215, 410, 430, 820, 860, 1763, 3526, 7052, 8815, 17630, 35260, 571397, 1142794, 2285588, 2856985, 5713970, 11427940, 23427277, 24570071, 46854554, 49140142, 93709108, 98280284, 117136385, 122850355, 234272770, 245700710, 468545540, 491401420, 1007372911, 2014745822, 4029491644, 5036864555, 10073729110, 20147458220]

約数ペア:

[(1, 20147458220), (2, 10073729110), (4, 5036864555), (5, 4029491644), (10, 2014745822), (20, 1007372911), (41, 491401420), (43, 468545540), (82, 245700710), (86, 234272770), (164, 122850355), (172, 117136385), (205, 98280284), (215, 93709108), (410, 49140142), (430, 46854554), (820, 24570071), (860, 23427277), (1763, 11427940), (3526, 5713970), (7052, 2856985), (8815, 2285588), (17630, 1142794), (35260, 571397)]