18276980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{719}}^1$

素因数の和:800

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 22365580

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 719, 820, 1271, 1438, 2542, 2876, 3595, 5084, 6355, 7190, 12710, 14380, 22289, 25420, 29479, 44578, 58958, 89156, 111445, 117916, 147395, 222890, 294790, 445780, 589580, 913849, 1827698, 3655396, 4569245, 9138490, 18276980]

約数ペア:

[(1, 18276980), (2, 9138490), (4, 4569245), (5, 3655396), (10, 1827698), (20, 913849), (31, 589580), (41, 445780), (62, 294790), (82, 222890), (124, 147395), (155, 117916), (164, 111445), (205, 89156), (310, 58958), (410, 44578), (620, 29479), (719, 25420), (820, 22289), (1271, 14380), (1438, 12710), (2542, 7190), (2876, 6355), (3595, 5084)]