398439470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{21433}}^1$

素因数の和:21477

約数の個数: 48

約数和(自身を含む): 847243152

約数和(自身を除く): 448803682

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 169, 286, 338, 715, 845, 1430, 1690, 1859, 3718, 9295, 18590, 21433, 42866, 107165, 214330, 235763, 278629, 471526, 557258, 1178815, 1393145, 2357630, 2786290, 3064919, 3622177, 6129838, 7244354, 15324595, 18110885, 30649190, 36221770, 39843947, 79687894, 199219735, 398439470]

約数ペア:

[(1, 398439470), (2, 199219735), (5, 79687894), (10, 39843947), (11, 36221770), (13, 30649190), (22, 18110885), (26, 15324595), (55, 7244354), (65, 6129838), (110, 3622177), (130, 3064919), (143, 2786290), (169, 2357630), (286, 1393145), (338, 1178815), (715, 557258), (845, 471526), (1430, 278629), (1690, 235763), (1859, 214330), (3718, 107165), (9295, 42866), (18590, 21433)]