20786427440

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8959667}}^1$

素因数の和:8959709

約数の個数: 40

約数和(自身を含む): 49994947440

約数和(自身を除く): 29208520000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 8959667, 17919334, 35838668, 44798335, 71677336, 89596670, 143354672, 179193340, 259830343, 358386680, 519660686, 716773360, 1039321372, 1299151715, 2078642744, 2598303430, 4157285488, 5196606860, 10393213720, 20786427440]

約数ペア:

[(1, 20786427440), (2, 10393213720), (4, 5196606860), (5, 4157285488), (8, 2598303430), (10, 2078642744), (16, 1299151715), (20, 1039321372), (29, 716773360), (40, 519660686), (58, 358386680), (80, 259830343), (116, 179193340), (145, 143354672), (232, 89596670), (290, 71677336), (464, 44798335), (580, 35838668), (1160, 17919334), (2320, 8959667)]