8538920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16421}}^1$

素因数の和:16445

約数の個数: 32

約数和(自身を含む): 20691720

約数和(自身を除く): 12152800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 16421, 32842, 65684, 82105, 131368, 164210, 213473, 328420, 426946, 656840, 853892, 1067365, 1707784, 2134730, 4269460, 8538920]

約数ペア:

[(1, 8538920), (2, 4269460), (4, 2134730), (5, 1707784), (8, 1067365), (10, 853892), (13, 656840), (20, 426946), (26, 328420), (40, 213473), (52, 164210), (65, 131368), (104, 82105), (130, 65684), (260, 32842), (520, 16421)]