1800000055

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{5297}}^1$

素因数の和:5408

約数の個数: 48

約数和(自身を含む): 2681635680

約数和(自身を除く): 881635625

約数列:

[1, 5, 7, 19, 35, 49, 73, 95, 133, 245, 365, 511, 665, 931, 1387, 2555, 3577, 4655, 5297, 6935, 9709, 17885, 26485, 37079, 48545, 67963, 100643, 185395, 259553, 339815, 386681, 503215, 704501, 1297765, 1933405, 2706767, 3522505, 4931507, 7346939, 13533835, 18947369, 24657535, 36734695, 51428573, 94736845, 257142865, 360000011, 1800000055]

約数ペア:

[(1, 1800000055), (5, 360000011), (7, 257142865), (19, 94736845), (35, 51428573), (49, 36734695), (73, 24657535), (95, 18947369), (133, 13533835), (245, 7346939), (365, 4931507), (511, 3522505), (665, 2706767), (931, 1933405), (1387, 1297765), (2555, 704501), (3577, 503215), (4655, 386681), (5297, 339815), (6935, 259553), (9709, 185395), (17885, 100643), (26485, 67963), (37079, 48545)]