68942800

素因数分解:

$2^4\times 5^2\times {\mathrm{172357}}^1$

素因数の和:172375

約数の個数: 30

約数和(自身を含む): 165636038

約数和(自身を除く): 96693238

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 172357, 344714, 689428, 861785, 1378856, 1723570, 2757712, 3447140, 4308925, 6894280, 8617850, 13788560, 17235700, 34471400, 68942800]

約数ペア:

[(1, 68942800), (2, 34471400), (4, 17235700), (5, 13788560), (8, 8617850), (10, 6894280), (16, 4308925), (20, 3447140), (25, 2757712), (40, 1723570), (50, 1378856), (80, 861785), (100, 689428), (200, 344714), (400, 172357)]