79826860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{647}}^1$

素因数の和:886

約数の個数: 48

約数和(自身を含む): 174182400

約数和(自身を除く): 94355540

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 199, 310, 398, 620, 647, 796, 995, 1294, 1990, 2588, 3235, 3980, 6169, 6470, 12338, 12940, 20057, 24676, 30845, 40114, 61690, 80228, 100285, 123380, 128753, 200570, 257506, 401140, 515012, 643765, 1287530, 2575060, 3991343, 7982686, 15965372, 19956715, 39913430, 79826860]

約数ペア:

[(1, 79826860), (2, 39913430), (4, 19956715), (5, 15965372), (10, 7982686), (20, 3991343), (31, 2575060), (62, 1287530), (124, 643765), (155, 515012), (199, 401140), (310, 257506), (398, 200570), (620, 128753), (647, 123380), (796, 100285), (995, 80228), (1294, 61690), (1990, 40114), (2588, 30845), (3235, 24676), (3980, 20057), (6169, 12940), (6470, 12338)]