636506480

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{112061}}^1$

素因数の和:112145

約数の個数: 40

約数和(自身を含む): 1500734304

約数和(自身を除く): 864227824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 112061, 224122, 448244, 560305, 896488, 1120610, 1792976, 2241220, 4482440, 7956331, 8964880, 15912662, 31825324, 39781655, 63650648, 79563310, 127301296, 159126620, 318253240, 636506480]

約数ペア:

[(1, 636506480), (2, 318253240), (4, 159126620), (5, 127301296), (8, 79563310), (10, 63650648), (16, 39781655), (20, 31825324), (40, 15912662), (71, 8964880), (80, 7956331), (142, 4482440), (284, 2241220), (355, 1792976), (568, 1120610), (710, 896488), (1136, 560305), (1420, 448244), (2840, 224122), (5680, 112061)]