28683988

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{197}}^1\times {\mathrm{409}}^1$

素因数の和:699

約数の個数: 24

約数和(自身を含む): 51143400

約数和(自身を除く): 22459412

約数列:

[1, 2, 4, 89, 178, 197, 356, 394, 409, 788, 818, 1636, 17533, 35066, 36401, 70132, 72802, 80573, 145604, 161146, 322292, 7170997, 14341994, 28683988]

約数ペア:

[(1, 28683988), (2, 14341994), (4, 7170997), (89, 322292), (178, 161146), (197, 145604), (356, 80573), (394, 72802), (409, 70132), (788, 36401), (818, 35066), (1636, 17533)]