81502120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{7867}}^1$

素因数の和:7922

約数の個数: 64

約数和(自身を含む): 215268480

約数和(自身を除く): 133766360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2072, 2590, 5180, 7867, 10360, 15734, 31468, 39335, 55069, 62936, 78670, 110138, 157340, 220276, 275345, 291079, 314680, 440552, 550690, 582158, 1101380, 1164316, 1455395, 2037553, 2202760, 2328632, 2910790, 4075106, 5821580, 8150212, 10187765, 11643160, 16300424, 20375530, 40751060, 81502120]

約数ペア:

[(1, 81502120), (2, 40751060), (4, 20375530), (5, 16300424), (7, 11643160), (8, 10187765), (10, 8150212), (14, 5821580), (20, 4075106), (28, 2910790), (35, 2328632), (37, 2202760), (40, 2037553), (56, 1455395), (70, 1164316), (74, 1101380), (140, 582158), (148, 550690), (185, 440552), (259, 314680), (280, 291079), (296, 275345), (370, 220276), (518, 157340), (740, 110138), (1036, 78670), (1295, 62936), (1480, 55069), (2072, 39335), (2590, 31468), (5180, 15734), (7867, 10360)]