19027480

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{349}}^1$

素因数の和:436

約数の個数: 64

約数和(自身を含む): 45360000

約数和(自身を除く): 26332520

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 47, 58, 94, 116, 145, 188, 232, 235, 290, 349, 376, 470, 580, 698, 940, 1160, 1363, 1396, 1745, 1880, 2726, 2792, 3490, 5452, 6815, 6980, 10121, 10904, 13630, 13960, 16403, 20242, 27260, 32806, 40484, 50605, 54520, 65612, 80968, 82015, 101210, 131224, 164030, 202420, 328060, 404840, 475687, 656120, 951374, 1902748, 2378435, 3805496, 4756870, 9513740, 19027480]

約数ペア:

[(1, 19027480), (2, 9513740), (4, 4756870), (5, 3805496), (8, 2378435), (10, 1902748), (20, 951374), (29, 656120), (40, 475687), (47, 404840), (58, 328060), (94, 202420), (116, 164030), (145, 131224), (188, 101210), (232, 82015), (235, 80968), (290, 65612), (349, 54520), (376, 50605), (470, 40484), (580, 32806), (698, 27260), (940, 20242), (1160, 16403), (1363, 13960), (1396, 13630), (1745, 10904), (1880, 10121), (2726, 6980), (2792, 6815), (3490, 5452)]