279172280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{170227}}^1$

素因数の和:170279

約数の個数: 32

約数和(自身を含む): 643461840

約数和(自身を除く): 364289560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 170227, 340454, 680908, 851135, 1361816, 1702270, 3404540, 6809080, 6979307, 13958614, 27917228, 34896535, 55834456, 69793070, 139586140, 279172280]

約数ペア:

[(1, 279172280), (2, 139586140), (4, 69793070), (5, 55834456), (8, 34896535), (10, 27917228), (20, 13958614), (40, 6979307), (41, 6809080), (82, 3404540), (164, 1702270), (205, 1361816), (328, 851135), (410, 680908), (820, 340454), (1640, 170227)]