201649880

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{16421}}^1$

素因数の和:16739

約数の個数: 32

約数和(自身を含む): 455217840

約数和(自身を除く): 253567960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 6140, 12280, 16421, 32842, 65684, 82105, 131368, 164210, 328420, 656840, 5041247, 10082494, 20164988, 25206235, 40329976, 50412470, 100824940, 201649880]

約数ペア:

[(1, 201649880), (2, 100824940), (4, 50412470), (5, 40329976), (8, 25206235), (10, 20164988), (20, 10082494), (40, 5041247), (307, 656840), (614, 328420), (1228, 164210), (1535, 131368), (2456, 82105), (3070, 65684), (6140, 32842), (12280, 16421)]