19542580

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7459}}^1$

素因数の和:7599

約数の個数: 24

約数和(自身を含む): 41358240

約数和(自身を除く): 21815660

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 7459, 14918, 29836, 37295, 74590, 149180, 977129, 1954258, 3908516, 4885645, 9771290, 19542580]

約数ペア:

[(1, 19542580), (2, 9771290), (4, 4885645), (5, 3908516), (10, 1954258), (20, 977129), (131, 149180), (262, 74590), (524, 37295), (655, 29836), (1310, 14918), (2620, 7459)]