19398280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44087}}^1$

素因数の和:44109

約数の個数: 32

約数和(自身を含む): 47615040

約数和(自身を除く): 28216760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 44087, 88174, 176348, 220435, 352696, 440870, 484957, 881740, 969914, 1763480, 1939828, 2424785, 3879656, 4849570, 9699140, 19398280]

約数ペア:

[(1, 19398280), (2, 9699140), (4, 4849570), (5, 3879656), (8, 2424785), (10, 1939828), (11, 1763480), (20, 969914), (22, 881740), (40, 484957), (44, 440870), (55, 352696), (88, 220435), (110, 176348), (220, 88174), (440, 44087)]