990880

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{563}}^1$

素因数の和:589

約数の個数: 48

約数和(自身を含む): 2558304

約数和(自身を除く): 1567424

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 563, 880, 1126, 1760, 2252, 2815, 4504, 5630, 6193, 9008, 11260, 12386, 18016, 22520, 24772, 30965, 45040, 49544, 61930, 90080, 99088, 123860, 198176, 247720, 495440, 990880]

約数ペア:

[(1, 990880), (2, 495440), (4, 247720), (5, 198176), (8, 123860), (10, 99088), (11, 90080), (16, 61930), (20, 49544), (22, 45040), (32, 30965), (40, 24772), (44, 22520), (55, 18016), (80, 12386), (88, 11260), (110, 9008), (160, 6193), (176, 5630), (220, 4504), (352, 2815), (440, 2252), (563, 1760), (880, 1126)]