17721040

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{9631}}^1$

素因数の和:9667

約数の個数: 40

約数和(自身を含む): 42997248

約数和(自身を除く): 25276208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 9631, 19262, 38524, 48155, 77048, 96310, 154096, 192620, 221513, 385240, 443026, 770480, 886052, 1107565, 1772104, 2215130, 3544208, 4430260, 8860520, 17721040]

約数ペア:

[(1, 17721040), (2, 8860520), (4, 4430260), (5, 3544208), (8, 2215130), (10, 1772104), (16, 1107565), (20, 886052), (23, 770480), (40, 443026), (46, 385240), (80, 221513), (92, 192620), (115, 154096), (184, 96310), (230, 77048), (368, 48155), (460, 38524), (920, 19262), (1840, 9631)]