87256580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{947}}^1$

素因数の和:1244

約数の個数: 48

約数和(自身を含む): 194939136

約数和(自身を除く): 107682556

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 271, 340, 542, 947, 1084, 1355, 1894, 2710, 3788, 4607, 4735, 5420, 9214, 9470, 16099, 18428, 18940, 23035, 32198, 46070, 64396, 80495, 92140, 160990, 256637, 321980, 513274, 1026548, 1283185, 2566370, 4362829, 5132740, 8725658, 17451316, 21814145, 43628290, 87256580]

約数ペア:

[(1, 87256580), (2, 43628290), (4, 21814145), (5, 17451316), (10, 8725658), (17, 5132740), (20, 4362829), (34, 2566370), (68, 1283185), (85, 1026548), (170, 513274), (271, 321980), (340, 256637), (542, 160990), (947, 92140), (1084, 80495), (1355, 64396), (1894, 46070), (2710, 32198), (3788, 23035), (4607, 18940), (4735, 18428), (5420, 16099), (9214, 9470)]