20306090

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1429}}^1$

素因数の和:1479

約数の個数: 48

約数和(自身を含む): 44015400

約数和(自身を除く): 23709310

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 49, 58, 70, 98, 145, 203, 245, 290, 406, 490, 1015, 1421, 1429, 2030, 2842, 2858, 7105, 7145, 10003, 14210, 14290, 20006, 41441, 50015, 70021, 82882, 100030, 140042, 207205, 290087, 350105, 414410, 580174, 700210, 1450435, 2030609, 2900870, 4061218, 10153045, 20306090]

約数ペア:

[(1, 20306090), (2, 10153045), (5, 4061218), (7, 2900870), (10, 2030609), (14, 1450435), (29, 700210), (35, 580174), (49, 414410), (58, 350105), (70, 290087), (98, 207205), (145, 140042), (203, 100030), (245, 82882), (290, 70021), (406, 50015), (490, 41441), (1015, 20006), (1421, 14290), (1429, 14210), (2030, 10003), (2842, 7145), (2858, 7105)]