257103680

素因数分解:

$2^6\times 5^1\times {\mathrm{803449}}^1$

素因数の和:803466

約数の個数: 28

約数和(自身を含む): 612228900

約数和(自身を除く): 355125220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 803449, 1606898, 3213796, 4017245, 6427592, 8034490, 12855184, 16068980, 25710368, 32137960, 51420736, 64275920, 128551840, 257103680]

約数ペア:

[(1, 257103680), (2, 128551840), (4, 64275920), (5, 51420736), (8, 32137960), (10, 25710368), (16, 16068980), (20, 12855184), (32, 8034490), (40, 6427592), (64, 4017245), (80, 3213796), (160, 1606898), (320, 803449)]