20951760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87299}}^1$

素因数の和:87315

約数の個数: 40

約数和(自身を含む): 64951200

約数和(自身を除く): 43999440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87299, 174598, 261897, 349196, 436495, 523794, 698392, 872990, 1047588, 1309485, 1396784, 1745980, 2095176, 2618970, 3491960, 4190352, 5237940, 6983920, 10475880, 20951760]

約数ペア:

[(1, 20951760), (2, 10475880), (3, 6983920), (4, 5237940), (5, 4190352), (6, 3491960), (8, 2618970), (10, 2095176), (12, 1745980), (15, 1396784), (16, 1309485), (20, 1047588), (24, 872990), (30, 698392), (40, 523794), (48, 436495), (60, 349196), (80, 261897), (120, 174598), (240, 87299)]