621815020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1\times {\mathrm{2819}}^1$

素因数の和:3138

約数の個数: 48

約数和(自身を含む): 1343109600

約数和(自身を除く): 721294580

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 269, 410, 538, 820, 1076, 1345, 2690, 2819, 5380, 5638, 11029, 11276, 14095, 22058, 28190, 44116, 55145, 56380, 110290, 115579, 220580, 231158, 462316, 577895, 758311, 1155790, 1516622, 2311580, 3033244, 3791555, 7583110, 15166220, 31090751, 62181502, 124363004, 155453755, 310907510, 621815020]

約数ペア:

[(1, 621815020), (2, 310907510), (4, 155453755), (5, 124363004), (10, 62181502), (20, 31090751), (41, 15166220), (82, 7583110), (164, 3791555), (205, 3033244), (269, 2311580), (410, 1516622), (538, 1155790), (820, 758311), (1076, 577895), (1345, 462316), (2690, 231158), (2819, 220580), (5380, 115579), (5638, 110290), (11029, 56380), (11276, 55145), (14095, 44116), (22058, 28190)]