20038504

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{307}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 38808000

約数和(自身を除く): 18769496

約数列:

[1, 2, 4, 8, 41, 82, 164, 199, 307, 328, 398, 614, 796, 1228, 1592, 2456, 8159, 12587, 16318, 25174, 32636, 50348, 61093, 65272, 100696, 122186, 244372, 488744, 2504813, 5009626, 10019252, 20038504]

約数ペア:

[(1, 20038504), (2, 10019252), (4, 5009626), (8, 2504813), (41, 488744), (82, 244372), (164, 122186), (199, 100696), (307, 65272), (328, 61093), (398, 50348), (614, 32636), (796, 25174), (1228, 16318), (1592, 12587), (2456, 8159)]