495440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{563}}^1$

素因数の和:587

約数の個数: 40

約数和(自身を含む): 1258848

約数和(自身を除く): 763408

約数列:

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

約数ペア:

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