20481264

素因数分解:

$2^4\times 3^2\times {\mathrm{142231}}^1$

素因数の和:142245

約数の個数: 30

約数和(自身を含む): 57319496

約数和(自身を除く): 36838232

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 142231, 284462, 426693, 568924, 853386, 1137848, 1280079, 1706772, 2275696, 2560158, 3413544, 5120316, 6827088, 10240632, 20481264]

約数ペア:

[(1, 20481264), (2, 10240632), (3, 6827088), (4, 5120316), (6, 3413544), (8, 2560158), (9, 2275696), (12, 1706772), (16, 1280079), (18, 1137848), (24, 853386), (36, 568924), (48, 426693), (72, 284462), (144, 142231)]