20156167960

素因数分解:

$2^3\times 5^1\times {\mathrm{4999}}^1\times {\mathrm{100801}}^1$

素因数の和:105811

約数の個数: 32

約数和(自身を含む): 45360900000

約数和(自身を除く): 25204732040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4999, 9998, 19996, 24995, 39992, 49990, 99980, 100801, 199960, 201602, 403204, 504005, 806408, 1008010, 2016020, 4032040, 503904199, 1007808398, 2015616796, 2519520995, 4031233592, 5039041990, 10078083980, 20156167960]

約数ペア:

[(1, 20156167960), (2, 10078083980), (4, 5039041990), (5, 4031233592), (8, 2519520995), (10, 2015616796), (20, 1007808398), (40, 503904199), (4999, 4032040), (9998, 2016020), (19996, 1008010), (24995, 806408), (39992, 504005), (49990, 403204), (99980, 201602), (100801, 199960)]