51530380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3299}}^1$

素因数の和:3390

約数の個数: 48

約数和(自身を含む): 119750400

約数和(自身を除く): 68220020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3299, 3905, 6598, 7810, 13196, 15620, 16495, 32990, 36289, 65980, 72578, 145156, 181445, 234229, 362890, 468458, 725780, 936916, 1171145, 2342290, 2576519, 4684580, 5153038, 10306076, 12882595, 25765190, 51530380]

約数ペア:

[(1, 51530380), (2, 25765190), (4, 12882595), (5, 10306076), (10, 5153038), (11, 4684580), (20, 2576519), (22, 2342290), (44, 1171145), (55, 936916), (71, 725780), (110, 468458), (142, 362890), (220, 234229), (284, 181445), (355, 145156), (710, 72578), (781, 65980), (1420, 36289), (1562, 32990), (3124, 16495), (3299, 15620), (3905, 13196), (6598, 7810)]