72369702920

素因数分解:

$2^3\times 5^1\times {\mathrm{1809242573}}^1$

素因数の和:1809242584

約数の個数: 16

約数和(自身を含む): 162831831660

約数和(自身を除く): 90462128740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1809242573, 3618485146, 7236970292, 9046212865, 14473940584, 18092425730, 36184851460, 72369702920]

約数ペア:

[(1, 72369702920), (2, 36184851460), (4, 18092425730), (5, 14473940584), (8, 9046212865), (10, 7236970292), (20, 3618485146), (40, 1809242573)]