20507768

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{877}}^1$

素因数の和:999

約数の個数: 32

約数和(自身を含む): 40036800

約数和(自身を除く): 19529032

約数列:

[1, 2, 4, 8, 37, 74, 79, 148, 158, 296, 316, 632, 877, 1754, 2923, 3508, 5846, 7016, 11692, 23384, 32449, 64898, 69283, 129796, 138566, 259592, 277132, 554264, 2563471, 5126942, 10253884, 20507768]

約数ペア:

[(1, 20507768), (2, 10253884), (4, 5126942), (8, 2563471), (37, 554264), (74, 277132), (79, 259592), (148, 138566), (158, 129796), (296, 69283), (316, 64898), (632, 32449), (877, 23384), (1754, 11692), (2923, 7016), (3508, 5846)]