20294685

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 19103715

約数列:

[1, 3, 5, 9, 15, 17, 27, 37, 45, 51, 85, 111, 135, 153, 185, 239, 255, 333, 459, 555, 629, 717, 765, 999, 1195, 1665, 1887, 2151, 2295, 3145, 3585, 4063, 4995, 5661, 6453, 8843, 9435, 10755, 12189, 16983, 20315, 26529, 28305, 32265, 36567, 44215, 60945, 79587, 84915, 109701, 132645, 150331, 182835, 238761, 397935, 450993, 548505, 751655, 1193805, 1352979, 2254965, 4058937, 6764895, 20294685]

約数ペア:

[(1, 20294685), (3, 6764895), (5, 4058937), (9, 2254965), (15, 1352979), (17, 1193805), (27, 751655), (37, 548505), (45, 450993), (51, 397935), (85, 238761), (111, 182835), (135, 150331), (153, 132645), (185, 109701), (239, 84915), (255, 79587), (333, 60945), (459, 44215), (555, 36567), (629, 32265), (717, 28305), (765, 26529), (999, 20315), (1195, 16983), (1665, 12189), (1887, 10755), (2151, 9435), (2295, 8843), (3145, 6453), (3585, 5661), (4063, 4995)]