127720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:145

約数の個数: 32

約数和(自身を含む): 299520

約数和(自身を除く): 171800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 103, 124, 155, 206, 248, 310, 412, 515, 620, 824, 1030, 1240, 2060, 3193, 4120, 6386, 12772, 15965, 25544, 31930, 63860, 127720]

約数ペア:

[(1, 127720), (2, 63860), (4, 31930), (5, 25544), (8, 15965), (10, 12772), (20, 6386), (31, 4120), (40, 3193), (62, 2060), (103, 1240), (124, 1030), (155, 824), (206, 620), (248, 515), (310, 412)]