20298775

素因数分解:

$5^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{601}}^1$

素因数の和:811

約数の個数: 24

約数和(自身を含む): 28963424

約数和(自身を除く): 8664649

約数列:

[1, 5, 7, 25, 35, 175, 193, 601, 965, 1351, 3005, 4207, 4825, 6755, 15025, 21035, 33775, 105175, 115993, 579965, 811951, 2899825, 4059755, 20298775]

約数ペア:

[(1, 20298775), (5, 4059755), (7, 2899825), (25, 811951), (35, 579965), (175, 115993), (193, 105175), (601, 33775), (965, 21035), (1351, 15025), (3005, 6755), (4207, 4825)]