80968040

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{12893}}^1$

素因数の和:13061

約数の個数: 32

約数和(自身を含む): 183352680

約数和(自身を除く): 102384640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 12893, 25786, 51572, 64465, 103144, 128930, 257860, 515720, 2024201, 4048402, 8096804, 10121005, 16193608, 20242010, 40484020, 80968040]

約数ペア:

[(1, 80968040), (2, 40484020), (4, 20242010), (5, 16193608), (8, 10121005), (10, 8096804), (20, 4048402), (40, 2024201), (157, 515720), (314, 257860), (628, 128930), (785, 103144), (1256, 64465), (1570, 51572), (3140, 25786), (6280, 12893)]