2886320

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{331}}^1$

素因数の和:453

約数の個数: 40

約数和(自身を含む): 6792720

約数和(自身を除く): 3906400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 331, 436, 545, 662, 872, 1090, 1324, 1655, 1744, 2180, 2648, 3310, 4360, 5296, 6620, 8720, 13240, 26480, 36079, 72158, 144316, 180395, 288632, 360790, 577264, 721580, 1443160, 2886320]

約数ペア:

[(1, 2886320), (2, 1443160), (4, 721580), (5, 577264), (8, 360790), (10, 288632), (16, 180395), (20, 144316), (40, 72158), (80, 36079), (109, 26480), (218, 13240), (331, 8720), (436, 6620), (545, 5296), (662, 4360), (872, 3310), (1090, 2648), (1324, 2180), (1655, 1744)]