20694120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{521}}^1$

素因数の和:866

約数の個数: 64

約数和(自身を含む): 62389440

約数和(自身を除く): 41695320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 331, 521, 662, 993, 1042, 1324, 1563, 1655, 1986, 2084, 2605, 2648, 3126, 3310, 3972, 4168, 4965, 5210, 6252, 6620, 7815, 7944, 9930, 10420, 12504, 13240, 15630, 19860, 20840, 31260, 39720, 62520, 172451, 344902, 517353, 689804, 862255, 1034706, 1379608, 1724510, 2069412, 2586765, 3449020, 4138824, 5173530, 6898040, 10347060, 20694120]

約数ペア:

[(1, 20694120), (2, 10347060), (3, 6898040), (4, 5173530), (5, 4138824), (6, 3449020), (8, 2586765), (10, 2069412), (12, 1724510), (15, 1379608), (20, 1034706), (24, 862255), (30, 689804), (40, 517353), (60, 344902), (120, 172451), (331, 62520), (521, 39720), (662, 31260), (993, 20840), (1042, 19860), (1324, 15630), (1563, 13240), (1655, 12504), (1986, 10420), (2084, 9930), (2605, 7944), (2648, 7815), (3126, 6620), (3310, 6252), (3972, 5210), (4168, 4965)]