18317780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1499}}^1$

素因数の和:1568

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 24018220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 1499, 2444, 2998, 3055, 5996, 6110, 7495, 12220, 14990, 19487, 29980, 38974, 70453, 77948, 97435, 140906, 194870, 281812, 352265, 389740, 704530, 915889, 1409060, 1831778, 3663556, 4579445, 9158890, 18317780]

約数ペア:

[(1, 18317780), (2, 9158890), (4, 4579445), (5, 3663556), (10, 1831778), (13, 1409060), (20, 915889), (26, 704530), (47, 389740), (52, 352265), (65, 281812), (94, 194870), (130, 140906), (188, 97435), (235, 77948), (260, 70453), (470, 38974), (611, 29980), (940, 19487), (1222, 14990), (1499, 12220), (2444, 7495), (2998, 6110), (3055, 5996)]