81665820

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{50411}}^1$

素因数の和:50432

約数の個数: 60

約数和(自身を含む): 256193784

約数和(自身を除く): 174527964

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 50411, 100822, 151233, 201644, 252055, 302466, 453699, 504110, 604932, 756165, 907398, 1008220, 1361097, 1512330, 1814796, 2268495, 2722194, 3024660, 4083291, 4536990, 5444388, 6805485, 8166582, 9073980, 13610970, 16333164, 20416455, 27221940, 40832910, 81665820]

約数ペア:

[(1, 81665820), (2, 40832910), (3, 27221940), (4, 20416455), (5, 16333164), (6, 13610970), (9, 9073980), (10, 8166582), (12, 6805485), (15, 5444388), (18, 4536990), (20, 4083291), (27, 3024660), (30, 2722194), (36, 2268495), (45, 1814796), (54, 1512330), (60, 1361097), (81, 1008220), (90, 907398), (108, 756165), (135, 604932), (162, 504110), (180, 453699), (270, 302466), (324, 252055), (405, 201644), (540, 151233), (810, 100822), (1620, 50411)]