20073620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1129}}^1$

素因数の和:1272

約数の個数: 48

約数和(自身を含む): 48599040

約数和(自身を除く): 28525420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 635, 889, 1129, 1270, 1778, 2258, 2540, 3556, 4445, 4516, 5645, 7903, 8890, 11290, 15806, 17780, 22580, 31612, 39515, 79030, 143383, 158060, 286766, 573532, 716915, 1003681, 1433830, 2007362, 2867660, 4014724, 5018405, 10036810, 20073620]

約数ペア:

[(1, 20073620), (2, 10036810), (4, 5018405), (5, 4014724), (7, 2867660), (10, 2007362), (14, 1433830), (20, 1003681), (28, 716915), (35, 573532), (70, 286766), (127, 158060), (140, 143383), (254, 79030), (508, 39515), (635, 31612), (889, 22580), (1129, 17780), (1270, 15806), (1778, 11290), (2258, 8890), (2540, 7903), (3556, 5645), (4445, 4516)]