65181820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{3329}}^1$

素因数の和:3438

約数の個数: 48

約数和(自身を含む): 151048800

約数和(自身を除く): 85866980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3329, 3916, 4895, 6658, 9790, 13316, 16645, 19580, 33290, 36619, 66580, 73238, 146476, 183095, 296281, 366190, 592562, 732380, 1185124, 1481405, 2962810, 3259091, 5925620, 6518182, 13036364, 16295455, 32590910, 65181820]

約数ペア:

[(1, 65181820), (2, 32590910), (4, 16295455), (5, 13036364), (10, 6518182), (11, 5925620), (20, 3259091), (22, 2962810), (44, 1481405), (55, 1185124), (89, 732380), (110, 592562), (178, 366190), (220, 296281), (356, 183095), (445, 146476), (890, 73238), (979, 66580), (1780, 36619), (1958, 33290), (3329, 19580), (3916, 16645), (4895, 13316), (6658, 9790)]