81889740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{454943}}^1$

素因数の和:454958

約数の個数: 36

約数和(自身を含む): 248399424

約数和(自身を除く): 166509684

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 454943, 909886, 1364829, 1819772, 2274715, 2729658, 4094487, 4549430, 5459316, 6824145, 8188974, 9098860, 13648290, 16377948, 20472435, 27296580, 40944870, 81889740]

約数ペア:

[(1, 81889740), (2, 40944870), (3, 27296580), (4, 20472435), (5, 16377948), (6, 13648290), (9, 9098860), (10, 8188974), (12, 6824145), (15, 5459316), (18, 4549430), (20, 4094487), (30, 2729658), (36, 2274715), (45, 1819772), (60, 1364829), (90, 909886), (180, 454943)]