1800560

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:401

約数の個数: 40

約数和(自身を含む): 4258656

約数和(自身を除く): 2458096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 317, 355, 568, 634, 710, 1136, 1268, 1420, 1585, 2536, 2840, 3170, 5072, 5680, 6340, 12680, 22507, 25360, 45014, 90028, 112535, 180056, 225070, 360112, 450140, 900280, 1800560]

約数ペア:

[(1, 1800560), (2, 900280), (4, 450140), (5, 360112), (8, 225070), (10, 180056), (16, 112535), (20, 90028), (40, 45014), (71, 25360), (80, 22507), (142, 12680), (284, 6340), (317, 5680), (355, 5072), (568, 3170), (634, 2840), (710, 2536), (1136, 1585), (1268, 1420)]