19141540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{521}}^1$

素因数の和:708

約数の個数: 48

約数和(自身を含む): 44198784

約数和(自身を除く): 25057244

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 167, 220, 334, 521, 668, 835, 1042, 1670, 1837, 2084, 2605, 3340, 3674, 5210, 5731, 7348, 9185, 10420, 11462, 18370, 22924, 28655, 36740, 57310, 87007, 114620, 174014, 348028, 435035, 870070, 957077, 1740140, 1914154, 3828308, 4785385, 9570770, 19141540]

約数ペア:

[(1, 19141540), (2, 9570770), (4, 4785385), (5, 3828308), (10, 1914154), (11, 1740140), (20, 957077), (22, 870070), (44, 435035), (55, 348028), (110, 174014), (167, 114620), (220, 87007), (334, 57310), (521, 36740), (668, 28655), (835, 22924), (1042, 18370), (1670, 11462), (1837, 10420), (2084, 9185), (2605, 7348), (3340, 5731), (3674, 5210)]