198308560

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{40637}}^1$

素因数の和:40711

約数の個数: 40

約数和(自身を含む): 468637416

約数和(自身を除く): 270328856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 40637, 81274, 162548, 203185, 325096, 406370, 650192, 812740, 1625480, 2478857, 3250960, 4957714, 9915428, 12394285, 19830856, 24788570, 39661712, 49577140, 99154280, 198308560]

約数ペア:

[(1, 198308560), (2, 99154280), (4, 49577140), (5, 39661712), (8, 24788570), (10, 19830856), (16, 12394285), (20, 9915428), (40, 4957714), (61, 3250960), (80, 2478857), (122, 1625480), (244, 812740), (305, 650192), (488, 406370), (610, 325096), (976, 203185), (1220, 162548), (2440, 81274), (4880, 40637)]