19659080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1151}}^1$

素因数の和:1230

約数の個数: 64

約数和(自身を含む): 51425280

約数和(自身を除く): 31766200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 854, 1151, 1220, 1708, 2135, 2302, 2440, 3416, 4270, 4604, 5755, 8057, 8540, 9208, 11510, 16114, 17080, 23020, 32228, 40285, 46040, 64456, 70211, 80570, 140422, 161140, 280844, 322280, 351055, 491477, 561688, 702110, 982954, 1404220, 1965908, 2457385, 2808440, 3931816, 4914770, 9829540, 19659080]

約数ペア:

[(1, 19659080), (2, 9829540), (4, 4914770), (5, 3931816), (7, 2808440), (8, 2457385), (10, 1965908), (14, 1404220), (20, 982954), (28, 702110), (35, 561688), (40, 491477), (56, 351055), (61, 322280), (70, 280844), (122, 161140), (140, 140422), (244, 80570), (280, 70211), (305, 64456), (427, 46040), (488, 40285), (610, 32228), (854, 23020), (1151, 17080), (1220, 16114), (1708, 11510), (2135, 9208), (2302, 8540), (2440, 8057), (3416, 5755), (4270, 4604)]