127456240

素因数分解:

$2^4\times 5^1\times {\mathrm{797}}^1\times {\mathrm{1999}}^1$

素因数の和:2809

約数の個数: 40

約数和(自身を含む): 296856000

約数和(自身を除く): 169399760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 797, 1594, 1999, 3188, 3985, 3998, 6376, 7970, 7996, 9995, 12752, 15940, 15992, 19990, 31880, 31984, 39980, 63760, 79960, 159920, 1593203, 3186406, 6372812, 7966015, 12745624, 15932030, 25491248, 31864060, 63728120, 127456240]

約数ペア:

[(1, 127456240), (2, 63728120), (4, 31864060), (5, 25491248), (8, 15932030), (10, 12745624), (16, 7966015), (20, 6372812), (40, 3186406), (80, 1593203), (797, 159920), (1594, 79960), (1999, 63760), (3188, 39980), (3985, 31984), (3998, 31880), (6376, 19990), (7970, 15992), (7996, 15940), (9995, 12752)]