18563860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1367}}^1$

素因数の和:1480

約数の個数: 48

約数和(自身を含む): 45045504

約数和(自身を除く): 26481644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1367, 1940, 2716, 2734, 3395, 5468, 6790, 6835, 9569, 13580, 13670, 19138, 27340, 38276, 47845, 95690, 132599, 191380, 265198, 530396, 662995, 928193, 1325990, 1856386, 2651980, 3712772, 4640965, 9281930, 18563860]

約数ペア:

[(1, 18563860), (2, 9281930), (4, 4640965), (5, 3712772), (7, 2651980), (10, 1856386), (14, 1325990), (20, 928193), (28, 662995), (35, 530396), (70, 265198), (97, 191380), (140, 132599), (194, 95690), (388, 47845), (485, 38276), (679, 27340), (970, 19138), (1358, 13670), (1367, 13580), (1940, 9569), (2716, 6835), (2734, 6790), (3395, 5468)]