1980560

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1303}}^1$

素因数の和:1335

約数の個数: 40

約数和(自身を含む): 4850880

約数和(自身を除く): 2870320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1303, 1520, 2606, 5212, 6515, 10424, 13030, 20848, 24757, 26060, 49514, 52120, 99028, 104240, 123785, 198056, 247570, 396112, 495140, 990280, 1980560]

約数ペア:

[(1, 1980560), (2, 990280), (4, 495140), (5, 396112), (8, 247570), (10, 198056), (16, 123785), (19, 104240), (20, 99028), (38, 52120), (40, 49514), (76, 26060), (80, 24757), (95, 20848), (152, 13030), (190, 10424), (304, 6515), (380, 5212), (760, 2606), (1303, 1520)]