66640090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{1439}}^1$

素因数の和:1878

約数の個数: 32

約数和(自身を含む): 131258880

約数和(自身を除く): 64618790

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 421, 842, 1439, 2105, 2878, 4210, 4631, 7195, 9262, 14390, 15829, 23155, 31658, 46310, 79145, 158290, 605819, 1211638, 3029095, 6058190, 6664009, 13328018, 33320045, 66640090]

約数ペア:

[(1, 66640090), (2, 33320045), (5, 13328018), (10, 6664009), (11, 6058190), (22, 3029095), (55, 1211638), (110, 605819), (421, 158290), (842, 79145), (1439, 46310), (2105, 31658), (2878, 23155), (4210, 15829), (4631, 14390), (7195, 9262)]