8740720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6427}}^1$

素因数の和:6457

約数の個数: 40

約数和(自身を含む): 21520944

約数和(自身を除く): 12780224

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 6427, 12854, 25708, 32135, 51416, 64270, 102832, 109259, 128540, 218518, 257080, 437036, 514160, 546295, 874072, 1092590, 1748144, 2185180, 4370360, 8740720]

約数ペア:

[(1, 8740720), (2, 4370360), (4, 2185180), (5, 1748144), (8, 1092590), (10, 874072), (16, 546295), (17, 514160), (20, 437036), (34, 257080), (40, 218518), (68, 128540), (80, 109259), (85, 102832), (136, 64270), (170, 51416), (272, 32135), (340, 25708), (680, 12854), (1360, 6427)]