20846420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{461}}^1$

素因数の和:513

約数の個数: 96

約数和(自身を含む): 55883520

約数和(自身を除く): 35037100

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 38, 68, 70, 76, 85, 95, 119, 133, 140, 170, 190, 238, 266, 323, 340, 380, 461, 476, 532, 595, 646, 665, 922, 1190, 1292, 1330, 1615, 1844, 2261, 2305, 2380, 2660, 3227, 3230, 4522, 4610, 6454, 6460, 7837, 8759, 9044, 9220, 11305, 12908, 15674, 16135, 17518, 22610, 31348, 32270, 35036, 39185, 43795, 45220, 54859, 61313, 64540, 78370, 87590, 109718, 122626, 148903, 156740, 175180, 219436, 245252, 274295, 297806, 306565, 548590, 595612, 613130, 744515, 1042321, 1097180, 1226260, 1489030, 2084642, 2978060, 4169284, 5211605, 10423210, 20846420]

約数ペア:

[(1, 20846420), (2, 10423210), (4, 5211605), (5, 4169284), (7, 2978060), (10, 2084642), (14, 1489030), (17, 1226260), (19, 1097180), (20, 1042321), (28, 744515), (34, 613130), (35, 595612), (38, 548590), (68, 306565), (70, 297806), (76, 274295), (85, 245252), (95, 219436), (119, 175180), (133, 156740), (140, 148903), (170, 122626), (190, 109718), (238, 87590), (266, 78370), (323, 64540), (340, 61313), (380, 54859), (461, 45220), (476, 43795), (532, 39185), (595, 35036), (646, 32270), (665, 31348), (922, 22610), (1190, 17518), (1292, 16135), (1330, 15674), (1615, 12908), (1844, 11305), (2261, 9220), (2305, 9044), (2380, 8759), (2660, 7837), (3227, 6460), (3230, 6454), (4522, 4610)]