140272520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113123}}^1$

素因数の和:113165

約数の個数: 32

約数和(自身を含む): 325797120

約数和(自身を除く): 185524600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 113123, 226246, 452492, 565615, 904984, 1131230, 2262460, 3506813, 4524920, 7013626, 14027252, 17534065, 28054504, 35068130, 70136260, 140272520]

約数ペア:

[(1, 140272520), (2, 70136260), (4, 35068130), (5, 28054504), (8, 17534065), (10, 14027252), (20, 7013626), (31, 4524920), (40, 3506813), (62, 2262460), (124, 1131230), (155, 904984), (248, 565615), (310, 452492), (620, 226246), (1240, 113123)]