2158840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1741}}^1$

素因数の和:1783

約数の個数: 32

約数和(自身を含む): 5016960

約数和(自身を除く): 2858120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1741, 3482, 6964, 8705, 13928, 17410, 34820, 53971, 69640, 107942, 215884, 269855, 431768, 539710, 1079420, 2158840]

約数ペア:

[(1, 2158840), (2, 1079420), (4, 539710), (5, 431768), (8, 269855), (10, 215884), (20, 107942), (31, 69640), (40, 53971), (62, 34820), (124, 17410), (155, 13928), (248, 8705), (310, 6964), (620, 3482), (1240, 1741)]