19502320

素因数分解:

$2^4\times 5^1\times {\mathrm{433}}^1\times {\mathrm{563}}^1$

素因数の和:1009

約数の個数: 40

約数和(自身を含む): 45528336

約数和(自身を除く): 26026016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 433, 563, 866, 1126, 1732, 2165, 2252, 2815, 3464, 4330, 4504, 5630, 6928, 8660, 9008, 11260, 17320, 22520, 34640, 45040, 243779, 487558, 975116, 1218895, 1950232, 2437790, 3900464, 4875580, 9751160, 19502320]

約数ペア:

[(1, 19502320), (2, 9751160), (4, 4875580), (5, 3900464), (8, 2437790), (10, 1950232), (16, 1218895), (20, 975116), (40, 487558), (80, 243779), (433, 45040), (563, 34640), (866, 22520), (1126, 17320), (1732, 11260), (2165, 9008), (2252, 8660), (2815, 6928), (3464, 5630), (4330, 4504)]