80568440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1087}}^1$

素因数の和:1224

約数の個数: 64

約数和(自身を含む): 193881600

約数和(自身を除く): 113313160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 109, 136, 170, 218, 340, 436, 545, 680, 872, 1087, 1090, 1853, 2174, 2180, 3706, 4348, 4360, 5435, 7412, 8696, 9265, 10870, 14824, 18479, 18530, 21740, 36958, 37060, 43480, 73916, 74120, 92395, 118483, 147832, 184790, 236966, 369580, 473932, 592415, 739160, 947864, 1184830, 2014211, 2369660, 4028422, 4739320, 8056844, 10071055, 16113688, 20142110, 40284220, 80568440]

約数ペア:

[(1, 80568440), (2, 40284220), (4, 20142110), (5, 16113688), (8, 10071055), (10, 8056844), (17, 4739320), (20, 4028422), (34, 2369660), (40, 2014211), (68, 1184830), (85, 947864), (109, 739160), (136, 592415), (170, 473932), (218, 369580), (340, 236966), (436, 184790), (545, 147832), (680, 118483), (872, 92395), (1087, 74120), (1090, 73916), (1853, 43480), (2174, 37060), (2180, 36958), (3706, 21740), (4348, 18530), (4360, 18479), (5435, 14824), (7412, 10870), (8696, 9265)]