28737640

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{10723}}^1$

素因数の和:10801

約数の個数: 32

約数和(自身を含む): 65630880

約数和(自身を除く): 36893240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 10723, 21446, 42892, 53615, 85784, 107230, 214460, 428920, 718441, 1436882, 2873764, 3592205, 5747528, 7184410, 14368820, 28737640]

約数ペア:

[(1, 28737640), (2, 14368820), (4, 7184410), (5, 5747528), (8, 3592205), (10, 2873764), (20, 1436882), (40, 718441), (67, 428920), (134, 214460), (268, 107230), (335, 85784), (536, 53615), (670, 42892), (1340, 21446), (2680, 10723)]