28441720

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1697}}^1$

素因数の和:2127

約数の個数: 32

約数和(自身を含む): 64184400

約数和(自身を除く): 35742680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1676, 1697, 2095, 3352, 3394, 4190, 6788, 8380, 8485, 13576, 16760, 16970, 33940, 67880, 711043, 1422086, 2844172, 3555215, 5688344, 7110430, 14220860, 28441720]

約数ペア:

[(1, 28441720), (2, 14220860), (4, 7110430), (5, 5688344), (8, 3555215), (10, 2844172), (20, 1422086), (40, 711043), (419, 67880), (838, 33940), (1676, 16970), (1697, 16760), (2095, 13576), (3352, 8485), (3394, 8380), (4190, 6788)]