20456790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{9341}}^1$

素因数の和:9424

約数の個数: 32

約数和(自身を含む): 49774176

約数和(自身を除く): 29317386

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 73, 146, 219, 365, 438, 730, 1095, 2190, 9341, 18682, 28023, 46705, 56046, 93410, 140115, 280230, 681893, 1363786, 2045679, 3409465, 4091358, 6818930, 10228395, 20456790]

約数ペア:

[(1, 20456790), (2, 10228395), (3, 6818930), (5, 4091358), (6, 3409465), (10, 2045679), (15, 1363786), (30, 681893), (73, 280230), (146, 140115), (219, 93410), (365, 56046), (438, 46705), (730, 28023), (1095, 18682), (2190, 9341)]