2861840

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{431}}^1$

素因数の和:527

約数の個数: 40

約数和(自身を含む): 6749568

約数和(自身を除く): 3887728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 431, 664, 830, 862, 1328, 1660, 1724, 2155, 3320, 3448, 4310, 6640, 6896, 8620, 17240, 34480, 35773, 71546, 143092, 178865, 286184, 357730, 572368, 715460, 1430920, 2861840]

約数ペア:

[(1, 2861840), (2, 1430920), (4, 715460), (5, 572368), (8, 357730), (10, 286184), (16, 178865), (20, 143092), (40, 71546), (80, 35773), (83, 34480), (166, 17240), (332, 8620), (415, 6896), (431, 6640), (664, 4310), (830, 3448), (862, 3320), (1328, 2155), (1660, 1724)]