255552040

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{40693}}^1$

素因数の和:40861

約数の個数: 32

約数和(自身を含む): 578668680

約数和(自身を除く): 323116640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 40693, 81386, 162772, 203465, 325544, 406930, 813860, 1627720, 6388801, 12777602, 25555204, 31944005, 51110408, 63888010, 127776020, 255552040]

約数ペア:

[(1, 255552040), (2, 127776020), (4, 63888010), (5, 51110408), (8, 31944005), (10, 25555204), (20, 12777602), (40, 6388801), (157, 1627720), (314, 813860), (628, 406930), (785, 325544), (1256, 203465), (1570, 162772), (3140, 81386), (6280, 40693)]