198880020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1104889}}^1$

素因数の和:1104904

約数の個数: 36

約数和(自身を含む): 603269940

約数和(自身を除く): 404389920

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1104889, 2209778, 3314667, 4419556, 5524445, 6629334, 9944001, 11048890, 13258668, 16573335, 19888002, 22097780, 33146670, 39776004, 49720005, 66293340, 99440010, 198880020]

約数ペア:

[(1, 198880020), (2, 99440010), (3, 66293340), (4, 49720005), (5, 39776004), (6, 33146670), (9, 22097780), (10, 19888002), (12, 16573335), (15, 13258668), (18, 11048890), (20, 9944001), (30, 6629334), (36, 5524445), (45, 4419556), (60, 3314667), (90, 2209778), (180, 1104889)]