28278320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{50497}}^1$

素因数の和:50517

約数の個数: 40

約数和(自身を含む): 75141024

約数和(自身を除く): 46862704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 50497, 100994, 201988, 252485, 353479, 403976, 504970, 706958, 807952, 1009940, 1413916, 1767395, 2019880, 2827832, 3534790, 4039760, 5655664, 7069580, 14139160, 28278320]

約数ペア:

[(1, 28278320), (2, 14139160), (4, 7069580), (5, 5655664), (7, 4039760), (8, 3534790), (10, 2827832), (14, 2019880), (16, 1767395), (20, 1413916), (28, 1009940), (35, 807952), (40, 706958), (56, 504970), (70, 403976), (80, 353479), (112, 252485), (140, 201988), (280, 100994), (560, 50497)]