7856860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{503}}^1$

素因数の和:594

約数の個数: 48

約数和(自身を含む): 18289152

約数和(自身を除く): 10432292

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 503, 710, 781, 1006, 1420, 1562, 2012, 2515, 3124, 3905, 5030, 5533, 7810, 10060, 11066, 15620, 22132, 27665, 35713, 55330, 71426, 110660, 142852, 178565, 357130, 392843, 714260, 785686, 1571372, 1964215, 3928430, 7856860]

約数ペア:

[(1, 7856860), (2, 3928430), (4, 1964215), (5, 1571372), (10, 785686), (11, 714260), (20, 392843), (22, 357130), (44, 178565), (55, 142852), (71, 110660), (110, 71426), (142, 55330), (220, 35713), (284, 27665), (355, 22132), (503, 15620), (710, 11066), (781, 10060), (1006, 7810), (1420, 5533), (1562, 5030), (2012, 3905), (2515, 3124)]