20520435

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2239}}^1$

素因数の和:2307

約数の個数: 32

約数和(自身を含む): 36126720

約数和(自身を除く): 15606285

約数列:

[1, 3, 5, 13, 15, 39, 47, 65, 141, 195, 235, 611, 705, 1833, 2239, 3055, 6717, 9165, 11195, 29107, 33585, 87321, 105233, 145535, 315699, 436605, 526165, 1368029, 1578495, 4104087, 6840145, 20520435]

約数ペア:

[(1, 20520435), (3, 6840145), (5, 4104087), (13, 1578495), (15, 1368029), (39, 526165), (47, 436605), (65, 315699), (141, 145535), (195, 105233), (235, 87321), (611, 33585), (705, 29107), (1833, 11195), (2239, 9165), (3055, 6717)]