20158804

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 39384576

約数和(自身を除く): 19225772

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 73, 124, 131, 146, 262, 292, 524, 527, 1054, 1241, 2108, 2227, 2263, 2482, 4061, 4454, 4526, 4964, 8122, 8908, 9052, 9563, 16244, 19126, 38252, 38471, 69037, 76942, 138074, 153884, 162571, 276148, 296453, 325142, 592906, 650284, 1185812, 5039701, 10079402, 20158804]

約数ペア:

[(1, 20158804), (2, 10079402), (4, 5039701), (17, 1185812), (31, 650284), (34, 592906), (62, 325142), (68, 296453), (73, 276148), (124, 162571), (131, 153884), (146, 138074), (262, 76942), (292, 69037), (524, 38471), (527, 38252), (1054, 19126), (1241, 16244), (2108, 9563), (2227, 9052), (2263, 8908), (2482, 8122), (4061, 4964), (4454, 4526)]