21638040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{180317}}^1$

素因数の和:180331

約数の個数: 32

約数和(自身を含む): 64914480

約数和(自身を除く): 43276440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 180317, 360634, 540951, 721268, 901585, 1081902, 1442536, 1803170, 2163804, 2704755, 3606340, 4327608, 5409510, 7212680, 10819020, 21638040]

約数ペア:

[(1, 21638040), (2, 10819020), (3, 7212680), (4, 5409510), (5, 4327608), (6, 3606340), (8, 2704755), (10, 2163804), (12, 1803170), (15, 1442536), (20, 1081902), (24, 901585), (30, 721268), (40, 540951), (60, 360634), (120, 180317)]