20565209860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1453}}^1\times {\mathrm{54437}}^1$

素因数の和:55912

約数の個数: 48

約数和(自身を含む): 46541876976

約数和(自身を除く): 25976667116

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1453, 2906, 5812, 7265, 14530, 18889, 29060, 37778, 54437, 75556, 94445, 108874, 188890, 217748, 272185, 377780, 544370, 707681, 1088740, 1415362, 2830724, 3538405, 7076810, 14153620, 79096961, 158193922, 316387844, 395484805, 790969610, 1028260493, 1581939220, 2056520986, 4113041972, 5141302465, 10282604930, 20565209860]

約数ペア:

[(1, 20565209860), (2, 10282604930), (4, 5141302465), (5, 4113041972), (10, 2056520986), (13, 1581939220), (20, 1028260493), (26, 790969610), (52, 395484805), (65, 316387844), (130, 158193922), (260, 79096961), (1453, 14153620), (2906, 7076810), (5812, 3538405), (7265, 2830724), (14530, 1415362), (18889, 1088740), (29060, 707681), (37778, 544370), (54437, 377780), (75556, 272185), (94445, 217748), (108874, 188890)]