81438540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{727}}^1\times {\mathrm{1867}}^1$

素因数の和:2606

約数の個数: 48

約数和(自身を含む): 228463872

約数和(自身を除く): 147025332

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 727, 1454, 1867, 2181, 2908, 3635, 3734, 4362, 5601, 7270, 7468, 8724, 9335, 10905, 11202, 14540, 18670, 21810, 22404, 28005, 37340, 43620, 56010, 112020, 1357309, 2714618, 4071927, 5429236, 6786545, 8143854, 13573090, 16287708, 20359635, 27146180, 40719270, 81438540]

約数ペア:

[(1, 81438540), (2, 40719270), (3, 27146180), (4, 20359635), (5, 16287708), (6, 13573090), (10, 8143854), (12, 6786545), (15, 5429236), (20, 4071927), (30, 2714618), (60, 1357309), (727, 112020), (1454, 56010), (1867, 43620), (2181, 37340), (2908, 28005), (3635, 22404), (3734, 21810), (4362, 18670), (5601, 14540), (7270, 11202), (7468, 10905), (8724, 9335)]