2522220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 7139328

約数和(自身を除く): 4617108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 254, 331, 381, 508, 635, 662, 762, 993, 1270, 1324, 1524, 1655, 1905, 1986, 2540, 3310, 3810, 3972, 4965, 6620, 7620, 9930, 19860, 42037, 84074, 126111, 168148, 210185, 252222, 420370, 504444, 630555, 840740, 1261110, 2522220]

約数ペア:

[(1, 2522220), (2, 1261110), (3, 840740), (4, 630555), (5, 504444), (6, 420370), (10, 252222), (12, 210185), (15, 168148), (20, 126111), (30, 84074), (60, 42037), (127, 19860), (254, 9930), (331, 7620), (381, 6620), (508, 4965), (635, 3972), (662, 3810), (762, 3310), (993, 2540), (1270, 1986), (1324, 1905), (1524, 1655)]