20168325880

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{461}}^1\times {\mathrm{9679}}^1$

素因数の和:10264

約数の個数: 64

約数和(自身を含む): 45884361600

約数和(自身を除く): 25716035720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 461, 565, 904, 922, 1130, 1844, 2260, 2305, 3688, 4520, 4610, 9220, 9679, 18440, 19358, 38716, 48395, 52093, 77432, 96790, 104186, 193580, 208372, 260465, 387160, 416744, 520930, 1041860, 1093727, 2083720, 2187454, 4374908, 4462019, 5468635, 8749816, 8924038, 10937270, 17848076, 21874540, 22310095, 35696152, 43749080, 44620190, 89240380, 178480760, 504208147, 1008416294, 2016832588, 2521040735, 4033665176, 5042081470, 10084162940, 20168325880]

約数ペア:

[(1, 20168325880), (2, 10084162940), (4, 5042081470), (5, 4033665176), (8, 2521040735), (10, 2016832588), (20, 1008416294), (40, 504208147), (113, 178480760), (226, 89240380), (452, 44620190), (461, 43749080), (565, 35696152), (904, 22310095), (922, 21874540), (1130, 17848076), (1844, 10937270), (2260, 8924038), (2305, 8749816), (3688, 5468635), (4520, 4462019), (4610, 4374908), (9220, 2187454), (9679, 2083720), (18440, 1093727), (19358, 1041860), (38716, 520930), (48395, 416744), (52093, 387160), (77432, 260465), (96790, 208372), (104186, 193580)]