19103480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3947}}^1$

素因数の和:3980

約数の個数: 48

約数和(自身を含む): 47257560

約数和(自身を除く): 28154080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 3947, 4840, 7894, 15788, 19735, 31576, 39470, 43417, 78940, 86834, 157880, 173668, 217085, 347336, 434170, 477587, 868340, 955174, 1736680, 1910348, 2387935, 3820696, 4775870, 9551740, 19103480]

約数ペア:

[(1, 19103480), (2, 9551740), (4, 4775870), (5, 3820696), (8, 2387935), (10, 1910348), (11, 1736680), (20, 955174), (22, 868340), (40, 477587), (44, 434170), (55, 347336), (88, 217085), (110, 173668), (121, 157880), (220, 86834), (242, 78940), (440, 43417), (484, 39470), (605, 31576), (968, 19735), (1210, 15788), (2420, 7894), (3947, 4840)]