91408280

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{8689}}^1$

素因数の和:8963

約数の個数: 32

約数和(自身を含む): 206474400

約数和(自身を除く): 115066120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 8689, 10520, 17378, 34756, 43445, 69512, 86890, 173780, 347560, 2285207, 4570414, 9140828, 11426035, 18281656, 22852070, 45704140, 91408280]

約数ペア:

[(1, 91408280), (2, 45704140), (4, 22852070), (5, 18281656), (8, 11426035), (10, 9140828), (20, 4570414), (40, 2285207), (263, 347560), (526, 173780), (1052, 86890), (1315, 69512), (2104, 43445), (2630, 34756), (5260, 17378), (8689, 10520)]