77885220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{185441}}^1$

素因数の和:185460

約数の個数: 48

約数和(自身を含む): 249234048

約数和(自身を除く): 171348828

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, 185441, 370882, 556323, 741764, 927205, 1112646, 1298087, 1854410, 2225292, 2596174, 2781615, 3708820, 3894261, 5192348, 5563230, 6490435, 7788522, 11126460, 12980870, 15577044, 19471305, 25961740, 38942610, 77885220]

約数ペア:

[(1, 77885220), (2, 38942610), (3, 25961740), (4, 19471305), (5, 15577044), (6, 12980870), (7, 11126460), (10, 7788522), (12, 6490435), (14, 5563230), (15, 5192348), (20, 3894261), (21, 3708820), (28, 2781615), (30, 2596174), (35, 2225292), (42, 1854410), (60, 1298087), (70, 1112646), (84, 927205), (105, 741764), (140, 556323), (210, 370882), (420, 185441)]