28279760

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{4259}}^1$

素因数の和:4355

約数の個数: 40

約数和(自身を含む): 66558240

約数和(自身を除く): 38278480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3320, 4259, 6640, 8518, 17036, 21295, 34072, 42590, 68144, 85180, 170360, 340720, 353497, 706994, 1413988, 1767485, 2827976, 3534970, 5655952, 7069940, 14139880, 28279760]

約数ペア:

[(1, 28279760), (2, 14139880), (4, 7069940), (5, 5655952), (8, 3534970), (10, 2827976), (16, 1767485), (20, 1413988), (40, 706994), (80, 353497), (83, 340720), (166, 170360), (332, 85180), (415, 68144), (664, 42590), (830, 34072), (1328, 21295), (1660, 17036), (3320, 8518), (4259, 6640)]