2015185720

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{637717}}^1$

素因数の和:637807

約数の個数: 32

約数和(自身を含む): 4591569600

約数和(自身を除く): 2576383880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 637717, 1275434, 2550868, 3188585, 5101736, 6377170, 12754340, 25508680, 50379643, 100759286, 201518572, 251898215, 403037144, 503796430, 1007592860, 2015185720]

約数ペア:

[(1, 2015185720), (2, 1007592860), (4, 503796430), (5, 403037144), (8, 251898215), (10, 201518572), (20, 100759286), (40, 50379643), (79, 25508680), (158, 12754340), (316, 6377170), (395, 5101736), (632, 3188585), (790, 2550868), (1580, 1275434), (3160, 637717)]