19561040

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10631}}^1$

素因数の和:10667

約数の個数: 40

約数和(自身を含む): 47461248

約数和(自身を除く): 27900208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 10631, 21262, 42524, 53155, 85048, 106310, 170096, 212620, 244513, 425240, 489026, 850480, 978052, 1222565, 1956104, 2445130, 3912208, 4890260, 9780520, 19561040]

約数ペア:

[(1, 19561040), (2, 9780520), (4, 4890260), (5, 3912208), (8, 2445130), (10, 1956104), (16, 1222565), (20, 978052), (23, 850480), (40, 489026), (46, 425240), (80, 244513), (92, 212620), (115, 170096), (184, 106310), (230, 85048), (368, 53155), (460, 42524), (920, 21262), (1840, 10631)]