640040760

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{1777891}}^1$

素因数の和:1777908

約数の個数: 48

約数和(自身を含む): 2080133640

約数和(自身を除く): 1440092880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 1777891, 3555782, 5333673, 7111564, 8889455, 10667346, 14223128, 16001019, 17778910, 21334692, 26668365, 32002038, 35557820, 42669384, 53336730, 64004076, 71115640, 80005095, 106673460, 128008152, 160010190, 213346920, 320020380, 640040760]

約数ペア:

[(1, 640040760), (2, 320020380), (3, 213346920), (4, 160010190), (5, 128008152), (6, 106673460), (8, 80005095), (9, 71115640), (10, 64004076), (12, 53336730), (15, 42669384), (18, 35557820), (20, 32002038), (24, 26668365), (30, 21334692), (36, 17778910), (40, 16001019), (45, 14223128), (60, 10667346), (72, 8889455), (90, 7111564), (120, 5333673), (180, 3555782), (360, 1777891)]