18319990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7417}}^1$

素因数の和:7456

約数の個数: 32

約数和(自身を含む): 37386720

約数和(自身を除く): 19066730

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 7417, 14834, 37085, 74170, 96421, 140923, 192842, 281846, 482105, 704615, 964210, 1409230, 1831999, 3663998, 9159995, 18319990]

約数ペア:

[(1, 18319990), (2, 9159995), (5, 3663998), (10, 1831999), (13, 1409230), (19, 964210), (26, 704615), (38, 482105), (65, 281846), (95, 192842), (130, 140923), (190, 96421), (247, 74170), (494, 37085), (1235, 14834), (2470, 7417)]