17819120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20249}}^1$

素因数の和:20273

約数の個数: 40

約数和(自身を含む): 45198000

約数和(自身を除く): 27378880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 20249, 40498, 80996, 101245, 161992, 202490, 222739, 323984, 404980, 445478, 809960, 890956, 1113695, 1619920, 1781912, 2227390, 3563824, 4454780, 8909560, 17819120]

約数ペア:

[(1, 17819120), (2, 8909560), (4, 4454780), (5, 3563824), (8, 2227390), (10, 1781912), (11, 1619920), (16, 1113695), (20, 890956), (22, 809960), (40, 445478), (44, 404980), (55, 323984), (80, 222739), (88, 202490), (110, 161992), (176, 101245), (220, 80996), (440, 40498), (880, 20249)]