19916435

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{179}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 31829760

約数和(自身を除く): 11913325

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 179, 187, 289, 385, 595, 895, 935, 1253, 1309, 1445, 1969, 2023, 3043, 3179, 6265, 6545, 9845, 10115, 13783, 15215, 15895, 21301, 22253, 33473, 51731, 68915, 106505, 111265, 167365, 234311, 258655, 362117, 569041, 1171555, 1810585, 2845205, 3983287, 19916435]

約数ペア:

[(1, 19916435), (5, 3983287), (7, 2845205), (11, 1810585), (17, 1171555), (35, 569041), (55, 362117), (77, 258655), (85, 234311), (119, 167365), (179, 111265), (187, 106505), (289, 68915), (385, 51731), (595, 33473), (895, 22253), (935, 21301), (1253, 15895), (1309, 15215), (1445, 13783), (1969, 10115), (2023, 9845), (3043, 6545), (3179, 6265)]