641485120

素因数分解:

$2^6\times 5^1\times {\mathrm{2004641}}^1$

素因数の和:2004658

約数の個数: 28

約数和(自身を含む): 1527537204

約数和(自身を除く): 886052084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 2004641, 4009282, 8018564, 10023205, 16037128, 20046410, 32074256, 40092820, 64148512, 80185640, 128297024, 160371280, 320742560, 641485120]

約数ペア:

[(1, 641485120), (2, 320742560), (4, 160371280), (5, 128297024), (8, 80185640), (10, 64148512), (16, 40092820), (20, 32074256), (32, 20046410), (40, 16037128), (64, 10023205), (80, 8018564), (160, 4009282), (320, 2004641)]