315280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{563}}^1$

素因数の和:583

約数の個数: 40

約数和(自身を含む): 839232

約数和(自身を除く): 523952

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 563, 1126, 2252, 2815, 3941, 4504, 5630, 7882, 9008, 11260, 15764, 19705, 22520, 31528, 39410, 45040, 63056, 78820, 157640, 315280]

約数ペア:

[(1, 315280), (2, 157640), (4, 78820), (5, 63056), (7, 45040), (8, 39410), (10, 31528), (14, 22520), (16, 19705), (20, 15764), (28, 11260), (35, 9008), (40, 7882), (56, 5630), (70, 4504), (80, 3941), (112, 2815), (140, 2252), (280, 1126), (560, 563)]