18265555

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{227}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 29111040

約数和(自身を除く): 10845485

約数列:

[1, 5, 7, 11, 19, 35, 55, 77, 95, 121, 133, 209, 227, 385, 605, 665, 847, 1045, 1135, 1463, 1589, 2299, 2497, 4235, 4313, 7315, 7945, 11495, 12485, 16093, 17479, 21565, 27467, 30191, 47443, 80465, 87395, 137335, 150955, 192269, 237215, 332101, 521873, 961345, 1660505, 2609365, 3653111, 18265555]

約数ペア:

[(1, 18265555), (5, 3653111), (7, 2609365), (11, 1660505), (19, 961345), (35, 521873), (55, 332101), (77, 237215), (95, 192269), (121, 150955), (133, 137335), (209, 87395), (227, 80465), (385, 47443), (605, 30191), (665, 27467), (847, 21565), (1045, 17479), (1135, 16093), (1463, 12485), (1589, 11495), (2299, 7945), (2497, 7315), (4235, 4313)]