20248934560

素因数分解:

$2^5\times 5^1\times {\mathrm{199}}^1\times {\mathrm{635959}}^1$

素因数の和:636173

約数の個数: 48

約数和(自身を含む): 48078576000

約数和(自身を除く): 27829641440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 6368, 7960, 15920, 31840, 635959, 1271918, 2543836, 3179795, 5087672, 6359590, 10175344, 12719180, 20350688, 25438360, 50876720, 101753440, 126555841, 253111682, 506223364, 632779205, 1012446728, 1265558410, 2024893456, 2531116820, 4049786912, 5062233640, 10124467280, 20248934560]

約数ペア:

[(1, 20248934560), (2, 10124467280), (4, 5062233640), (5, 4049786912), (8, 2531116820), (10, 2024893456), (16, 1265558410), (20, 1012446728), (32, 632779205), (40, 506223364), (80, 253111682), (160, 126555841), (199, 101753440), (398, 50876720), (796, 25438360), (995, 20350688), (1592, 12719180), (1990, 10175344), (3184, 6359590), (3980, 5087672), (6368, 3179795), (7960, 2543836), (15920, 1271918), (31840, 635959)]