2009705975

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 2633164800

約数和(自身を除く): 623458825

約数列:

[1, 5, 25, 31, 83, 155, 157, 199, 415, 775, 785, 995, 2075, 2573, 3925, 4867, 4975, 6169, 12865, 13031, 16517, 24335, 30845, 31243, 64325, 65155, 82585, 121675, 154225, 156215, 325775, 403961, 412925, 512027, 781075, 968533, 2019805, 2560135, 2593169, 4842665, 10099025, 12800675, 12965845, 24213325, 64829225, 80388239, 401941195, 2009705975]

約数ペア:

[(1, 2009705975), (5, 401941195), (25, 80388239), (31, 64829225), (83, 24213325), (155, 12965845), (157, 12800675), (199, 10099025), (415, 4842665), (775, 2593169), (785, 2560135), (995, 2019805), (2075, 968533), (2573, 781075), (3925, 512027), (4867, 412925), (4975, 403961), (6169, 325775), (12865, 156215), (13031, 154225), (16517, 121675), (24335, 82585), (30845, 65155), (31243, 64325)]