204048400

素因数分解:

$2^4\times 5^2\times {\mathrm{510121}}^1$

素因数の和:510139

約数の個数: 30

約数和(自身を含む): 490227242

約数和(自身を除く): 286178842

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 510121, 1020242, 2040484, 2550605, 4080968, 5101210, 8161936, 10202420, 12753025, 20404840, 25506050, 40809680, 51012100, 102024200, 204048400]

約数ペア:

[(1, 204048400), (2, 102024200), (4, 51012100), (5, 40809680), (8, 25506050), (10, 20404840), (16, 12753025), (20, 10202420), (25, 8161936), (40, 5101210), (50, 4080968), (80, 2550605), (100, 2040484), (200, 1020242), (400, 510121)]