19917080

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21649}}^1$

素因数の和:21683

約数の個数: 32

約数和(自身を含む): 46764000

約数和(自身を除く): 26846920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21649, 43298, 86596, 108245, 173192, 216490, 432980, 497927, 865960, 995854, 1991708, 2489635, 3983416, 4979270, 9958540, 19917080]

約数ペア:

[(1, 19917080), (2, 9958540), (4, 4979270), (5, 3983416), (8, 2489635), (10, 1991708), (20, 995854), (23, 865960), (40, 497927), (46, 432980), (92, 216490), (115, 173192), (184, 108245), (230, 86596), (460, 43298), (920, 21649)]