40796920

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1543}}^1$

素因数の和:2215

約数の個数: 32

約数和(自身を含む): 91991520

約数和(自身を除く): 51194600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 1543, 2644, 3086, 3305, 5288, 6172, 6610, 7715, 12344, 13220, 15430, 26440, 30860, 61720, 1019923, 2039846, 4079692, 5099615, 8159384, 10199230, 20398460, 40796920]

約数ペア:

[(1, 40796920), (2, 20398460), (4, 10199230), (5, 8159384), (8, 5099615), (10, 4079692), (20, 2039846), (40, 1019923), (661, 61720), (1322, 30860), (1543, 26440), (2644, 15430), (3086, 13220), (3305, 12344), (5288, 7715), (6172, 6610)]