1809156640

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{43997}}^1$

素因数の和:44269

約数の個数: 48

約数和(自身を含む): 4290860952

約数和(自身を除く): 2481704312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 514, 1028, 1285, 2056, 2570, 4112, 5140, 8224, 10280, 20560, 41120, 43997, 87994, 175988, 219985, 351976, 439970, 703952, 879940, 1407904, 1759880, 3519760, 7039520, 11307229, 22614458, 45228916, 56536145, 90457832, 113072290, 180915664, 226144580, 361831328, 452289160, 904578320, 1809156640]

約数ペア:

[(1, 1809156640), (2, 904578320), (4, 452289160), (5, 361831328), (8, 226144580), (10, 180915664), (16, 113072290), (20, 90457832), (32, 56536145), (40, 45228916), (80, 22614458), (160, 11307229), (257, 7039520), (514, 3519760), (1028, 1759880), (1285, 1407904), (2056, 879940), (2570, 703952), (4112, 439970), (5140, 351976), (8224, 219985), (10280, 175988), (20560, 87994), (41120, 43997)]