20121615055

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{461}}^1\times {\mathrm{17707}}^1$

素因数の和:18219

約数の個数: 32

約数和(自身を含む): 26506751040

約数和(自身を除く): 6385135985

約数列:

[1, 5, 17, 29, 85, 145, 461, 493, 2305, 2465, 7837, 13369, 17707, 39185, 66845, 88535, 227273, 301019, 513503, 1136365, 1505095, 2567515, 8162927, 8729551, 40814635, 43647755, 138769759, 236724883, 693848795, 1183624415, 4024323011, 20121615055]

約数ペア:

[(1, 20121615055), (5, 4024323011), (17, 1183624415), (29, 693848795), (85, 236724883), (145, 138769759), (461, 43647755), (493, 40814635), (2305, 8729551), (2465, 8162927), (7837, 2567515), (13369, 1505095), (17707, 1136365), (39185, 513503), (66845, 301019), (88535, 227273)]