25315760

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4457}}^1$

素因数の和:4541

約数の個数: 40

約数和(自身を含む): 59701536

約数和(自身を除く): 34385776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 4457, 5680, 8914, 17828, 22285, 35656, 44570, 71312, 89140, 178280, 316447, 356560, 632894, 1265788, 1582235, 2531576, 3164470, 5063152, 6328940, 12657880, 25315760]

約数ペア:

[(1, 25315760), (2, 12657880), (4, 6328940), (5, 5063152), (8, 3164470), (10, 2531576), (16, 1582235), (20, 1265788), (40, 632894), (71, 356560), (80, 316447), (142, 178280), (284, 89140), (355, 71312), (568, 44570), (710, 35656), (1136, 22285), (1420, 17828), (2840, 8914), (4457, 5680)]