28783760

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1087}}^1$

素因数の和:1431

約数の個数: 40

約数和(自身を含む): 67186176

約数和(自身を除く): 38402416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 662, 1087, 1324, 1655, 2174, 2648, 3310, 4348, 5296, 5435, 6620, 8696, 10870, 13240, 17392, 21740, 26480, 43480, 86960, 359797, 719594, 1439188, 1798985, 2878376, 3597970, 5756752, 7195940, 14391880, 28783760]

約数ペア:

[(1, 28783760), (2, 14391880), (4, 7195940), (5, 5756752), (8, 3597970), (10, 2878376), (16, 1798985), (20, 1439188), (40, 719594), (80, 359797), (331, 86960), (662, 43480), (1087, 26480), (1324, 21740), (1655, 17392), (2174, 13240), (2648, 10870), (3310, 8696), (4348, 6620), (5296, 5435)]