20948820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3923}}^1$

素因数の和:4024

約数の個数: 48

約数和(自身を含む): 59330880

約数和(自身を除く): 38382060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 178, 267, 356, 445, 534, 890, 1068, 1335, 1780, 2670, 3923, 5340, 7846, 11769, 15692, 19615, 23538, 39230, 47076, 58845, 78460, 117690, 235380, 349147, 698294, 1047441, 1396588, 1745735, 2094882, 3491470, 4189764, 5237205, 6982940, 10474410, 20948820]

約数ペア:

[(1, 20948820), (2, 10474410), (3, 6982940), (4, 5237205), (5, 4189764), (6, 3491470), (10, 2094882), (12, 1745735), (15, 1396588), (20, 1047441), (30, 698294), (60, 349147), (89, 235380), (178, 117690), (267, 78460), (356, 58845), (445, 47076), (534, 39230), (890, 23538), (1068, 19615), (1335, 15692), (1780, 11769), (2670, 7846), (3923, 5340)]