18087760

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{727}}^1$

素因数の和:1051

約数の個数: 40

約数和(自身を含む): 42247296

約数和(自身を除く): 24159536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 622, 727, 1244, 1454, 1555, 2488, 2908, 3110, 3635, 4976, 5816, 6220, 7270, 11632, 12440, 14540, 24880, 29080, 58160, 226097, 452194, 904388, 1130485, 1808776, 2260970, 3617552, 4521940, 9043880, 18087760]

約数ペア:

[(1, 18087760), (2, 9043880), (4, 4521940), (5, 3617552), (8, 2260970), (10, 1808776), (16, 1130485), (20, 904388), (40, 452194), (80, 226097), (311, 58160), (622, 29080), (727, 24880), (1244, 14540), (1454, 12440), (1555, 11632), (2488, 7270), (2908, 6220), (3110, 5816), (3635, 4976)]