4379990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:308

約数の個数: 32

約数和(自身を含む): 8294400

約数和(自身を除く): 3914410

約数列:

[1, 2, 5, 10, 31, 62, 71, 142, 155, 199, 310, 355, 398, 710, 995, 1990, 2201, 4402, 6169, 11005, 12338, 14129, 22010, 28258, 30845, 61690, 70645, 141290, 437999, 875998, 2189995, 4379990]

約数ペア:

[(1, 4379990), (2, 2189995), (5, 875998), (10, 437999), (31, 141290), (62, 70645), (71, 61690), (142, 30845), (155, 28258), (199, 22010), (310, 14129), (355, 12338), (398, 11005), (710, 6169), (995, 4402), (1990, 2201)]