18746140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{457}}^1$

素因数の和:766

約数の個数: 48

約数和(自身を含む): 45243072

約数和(自身を除く): 26496932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 293, 457, 586, 914, 1172, 1465, 1828, 2051, 2285, 2930, 3199, 4102, 4570, 5860, 6398, 8204, 9140, 10255, 12796, 15995, 20510, 31990, 41020, 63980, 133901, 267802, 535604, 669505, 937307, 1339010, 1874614, 2678020, 3749228, 4686535, 9373070, 18746140]

約数ペア:

[(1, 18746140), (2, 9373070), (4, 4686535), (5, 3749228), (7, 2678020), (10, 1874614), (14, 1339010), (20, 937307), (28, 669505), (35, 535604), (70, 267802), (140, 133901), (293, 63980), (457, 41020), (586, 31990), (914, 20510), (1172, 15995), (1465, 12796), (1828, 10255), (2051, 9140), (2285, 8204), (2930, 6398), (3199, 5860), (4102, 4570)]