18245220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43441}}^1$

素因数の和:43460

約数の個数: 48

約数和(自身を含む): 58386048

約数和(自身を除く): 40140828

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 43441, 86882, 130323, 173764, 217205, 260646, 304087, 434410, 521292, 608174, 651615, 868820, 912261, 1216348, 1303230, 1520435, 1824522, 2606460, 3040870, 3649044, 4561305, 6081740, 9122610, 18245220]

約数ペア:

[(1, 18245220), (2, 9122610), (3, 6081740), (4, 4561305), (5, 3649044), (6, 3040870), (7, 2606460), (10, 1824522), (12, 1520435), (14, 1303230), (15, 1216348), (20, 912261), (21, 868820), (28, 651615), (30, 608174), (35, 521292), (42, 434410), (60, 304087), (70, 260646), (84, 217205), (105, 173764), (140, 130323), (210, 86882), (420, 43441)]