20189798840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17404999}}^1$

素因数の和:17405039

約数の個数: 32

約数和(自身を含む): 46993500000

約数和(自身を除く): 26803701160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 17404999, 34809998, 69619996, 87024995, 139239992, 174049990, 348099980, 504744971, 696199960, 1009489942, 2018979884, 2523724855, 4037959768, 5047449710, 10094899420, 20189798840]

約数ペア:

[(1, 20189798840), (2, 10094899420), (4, 5047449710), (5, 4037959768), (8, 2523724855), (10, 2018979884), (20, 1009489942), (29, 696199960), (40, 504744971), (58, 348099980), (116, 174049990), (145, 139239992), (232, 87024995), (290, 69619996), (580, 34809998), (1160, 17404999)]