31031260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{71}}^1$

素因数の和:175

約数の個数: 72

約数和(自身を含む): 72944928

約数和(自身を除く): 41913668

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 71, 82, 130, 142, 164, 205, 260, 284, 355, 410, 533, 710, 820, 923, 1066, 1420, 1681, 1846, 2132, 2665, 2911, 3362, 3692, 4615, 5330, 5822, 6724, 8405, 9230, 10660, 11644, 14555, 16810, 18460, 21853, 29110, 33620, 37843, 43706, 58220, 75686, 87412, 109265, 119351, 151372, 189215, 218530, 238702, 378430, 437060, 477404, 596755, 756860, 1193510, 1551563, 2387020, 3103126, 6206252, 7757815, 15515630, 31031260]

約数ペア:

[(1, 31031260), (2, 15515630), (4, 7757815), (5, 6206252), (10, 3103126), (13, 2387020), (20, 1551563), (26, 1193510), (41, 756860), (52, 596755), (65, 477404), (71, 437060), (82, 378430), (130, 238702), (142, 218530), (164, 189215), (205, 151372), (260, 119351), (284, 109265), (355, 87412), (410, 75686), (533, 58220), (710, 43706), (820, 37843), (923, 33620), (1066, 29110), (1420, 21853), (1681, 18460), (1846, 16810), (2132, 14555), (2665, 11644), (2911, 10660), (3362, 9230), (3692, 8405), (4615, 6724), (5330, 5822)]