80159420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21433}}^1$

素因数の和:21470

約数の個数: 48

約数和(自身を含む): 194449248

約数和(自身を除く): 114289828

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 21433, 42866, 85732, 107165, 214330, 235763, 364361, 428660, 471526, 728722, 943052, 1178815, 1457444, 1821805, 2357630, 3643610, 4007971, 4715260, 7287220, 8015942, 16031884, 20039855, 40079710, 80159420]

約数ペア:

[(1, 80159420), (2, 40079710), (4, 20039855), (5, 16031884), (10, 8015942), (11, 7287220), (17, 4715260), (20, 4007971), (22, 3643610), (34, 2357630), (44, 1821805), (55, 1457444), (68, 1178815), (85, 943052), (110, 728722), (170, 471526), (187, 428660), (220, 364361), (340, 235763), (374, 214330), (748, 107165), (935, 85732), (1870, 42866), (3740, 21433)]