18154480

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{883}}^1$

素因数の和:1153

約数の個数: 40

約数和(自身を含む): 42421392

約数和(自身を除く): 24266912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 883, 1028, 1285, 1766, 2056, 2570, 3532, 4112, 4415, 5140, 7064, 8830, 10280, 14128, 17660, 20560, 35320, 70640, 226931, 453862, 907724, 1134655, 1815448, 2269310, 3630896, 4538620, 9077240, 18154480]

約数ペア:

[(1, 18154480), (2, 9077240), (4, 4538620), (5, 3630896), (8, 2269310), (10, 1815448), (16, 1134655), (20, 907724), (40, 453862), (80, 226931), (257, 70640), (514, 35320), (883, 20560), (1028, 17660), (1285, 14128), (1766, 10280), (2056, 8830), (2570, 7064), (3532, 5140), (4112, 4415)]