131405984

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{2131}}^1$

素因数の和:2229

約数の個数: 48

約数和(自身を含む): 270781056

約数和(自身を除く): 139375072

約数列:

[1, 2, 4, 8, 16, 32, 41, 47, 82, 94, 164, 188, 328, 376, 656, 752, 1312, 1504, 1927, 2131, 3854, 4262, 7708, 8524, 15416, 17048, 30832, 34096, 61664, 68192, 87371, 100157, 174742, 200314, 349484, 400628, 698968, 801256, 1397936, 1602512, 2795872, 3205024, 4106437, 8212874, 16425748, 32851496, 65702992, 131405984]

約数ペア:

[(1, 131405984), (2, 65702992), (4, 32851496), (8, 16425748), (16, 8212874), (32, 4106437), (41, 3205024), (47, 2795872), (82, 1602512), (94, 1397936), (164, 801256), (188, 698968), (328, 400628), (376, 349484), (656, 200314), (752, 174742), (1312, 100157), (1504, 87371), (1927, 68192), (2131, 61664), (3854, 34096), (4262, 30832), (7708, 17048), (8524, 15416)]