20107900

素因数分解:

$2^2\times 5^2\times {\mathrm{233}}^1\times {\mathrm{863}}^1$

素因数の和:1110

約数の個数: 36

約数和(自身を含む): 43872192

約数和(自身を除く): 23764292

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 233, 466, 863, 932, 1165, 1726, 2330, 3452, 4315, 4660, 5825, 8630, 11650, 17260, 21575, 23300, 43150, 86300, 201079, 402158, 804316, 1005395, 2010790, 4021580, 5026975, 10053950, 20107900]

約数ペア:

[(1, 20107900), (2, 10053950), (4, 5026975), (5, 4021580), (10, 2010790), (20, 1005395), (25, 804316), (50, 402158), (100, 201079), (233, 86300), (466, 43150), (863, 23300), (932, 21575), (1165, 17260), (1726, 11650), (2330, 8630), (3452, 5825), (4315, 4660)]