171723280

素因数分解:

$2^4\times 5^1\times {\mathrm{997}}^1\times {\mathrm{2153}}^1$

素因数の和:3163

約数の個数: 40

約数和(自身を含む): 399842712

約数和(自身を除く): 228119432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 997, 1994, 2153, 3988, 4306, 4985, 7976, 8612, 9970, 10765, 15952, 17224, 19940, 21530, 34448, 39880, 43060, 79760, 86120, 172240, 2146541, 4293082, 8586164, 10732705, 17172328, 21465410, 34344656, 42930820, 85861640, 171723280]

約数ペア:

[(1, 171723280), (2, 85861640), (4, 42930820), (5, 34344656), (8, 21465410), (10, 17172328), (16, 10732705), (20, 8586164), (40, 4293082), (80, 2146541), (997, 172240), (1994, 86120), (2153, 79760), (3988, 43060), (4306, 39880), (4985, 34448), (7976, 21530), (8612, 19940), (9970, 17224), (10765, 15952)]