19691480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{12007}}^1$

素因数の和:12059

約数の個数: 32

約数和(自身を含む): 45390240

約数和(自身を除く): 25698760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 12007, 24014, 48028, 60035, 96056, 120070, 240140, 480280, 492287, 984574, 1969148, 2461435, 3938296, 4922870, 9845740, 19691480]

約数ペア:

[(1, 19691480), (2, 9845740), (4, 4922870), (5, 3938296), (8, 2461435), (10, 1969148), (20, 984574), (40, 492287), (41, 480280), (82, 240140), (164, 120070), (205, 96056), (328, 60035), (410, 48028), (820, 24014), (1640, 12007)]