20409950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{863}}^1$

素因数の和:929

約数の個数: 48

約数和(自身を含む): 42425856

約数和(自身を除く): 22015906

約数列:

[1, 2, 5, 10, 11, 22, 25, 43, 50, 55, 86, 110, 215, 275, 430, 473, 550, 863, 946, 1075, 1726, 2150, 2365, 4315, 4730, 8630, 9493, 11825, 18986, 21575, 23650, 37109, 43150, 47465, 74218, 94930, 185545, 237325, 371090, 408199, 474650, 816398, 927725, 1855450, 2040995, 4081990, 10204975, 20409950]

約数ペア:

[(1, 20409950), (2, 10204975), (5, 4081990), (10, 2040995), (11, 1855450), (22, 927725), (25, 816398), (43, 474650), (50, 408199), (55, 371090), (86, 237325), (110, 185545), (215, 94930), (275, 74218), (430, 47465), (473, 43150), (550, 37109), (863, 23650), (946, 21575), (1075, 18986), (1726, 11825), (2150, 9493), (2365, 8630), (4315, 4730)]