18740410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{853}}^1$

素因数の和:899

約数の個数: 32

約数和(自身を含む): 36585360

約数和(自身を除く): 17844950

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 853, 1690, 1706, 2197, 4265, 4394, 8530, 10985, 11089, 21970, 22178, 55445, 110890, 144157, 288314, 720785, 1441570, 1874041, 3748082, 9370205, 18740410]

約数ペア:

[(1, 18740410), (2, 9370205), (5, 3748082), (10, 1874041), (13, 1441570), (26, 720785), (65, 288314), (130, 144157), (169, 110890), (338, 55445), (845, 22178), (853, 21970), (1690, 11089), (1706, 10985), (2197, 8530), (4265, 4394)]