86943388

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 177811200

約数和(自身を除く): 90867812

約数列:

[1, 2, 4, 7, 14, 28, 89, 139, 178, 251, 278, 356, 502, 556, 623, 973, 1004, 1246, 1757, 1946, 2492, 3514, 3892, 7028, 12371, 22339, 24742, 34889, 44678, 49484, 69778, 86597, 89356, 139556, 156373, 173194, 244223, 312746, 346388, 488446, 625492, 976892, 3105121, 6210242, 12420484, 21735847, 43471694, 86943388]

約数ペア:

[(1, 86943388), (2, 43471694), (4, 21735847), (7, 12420484), (14, 6210242), (28, 3105121), (89, 976892), (139, 625492), (178, 488446), (251, 346388), (278, 312746), (356, 244223), (502, 173194), (556, 156373), (623, 139556), (973, 89356), (1004, 86597), (1246, 69778), (1757, 49484), (1946, 44678), (2492, 34889), (3514, 24742), (3892, 22339), (7028, 12371)]