129208540

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{88499}}^1$

素因数の和:88581

約数の個数: 24

約数和(自身を含む): 275058000

約数和(自身を除く): 145849460

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 88499, 176998, 353996, 442495, 884990, 1769980, 6460427, 12920854, 25841708, 32302135, 64604270, 129208540]

約数ペア:

[(1, 129208540), (2, 64604270), (4, 32302135), (5, 25841708), (10, 12920854), (20, 6460427), (73, 1769980), (146, 884990), (292, 442495), (365, 353996), (730, 176998), (1460, 88499)]