2808760

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:148

約数の個数: 64

約数和(自身を含む): 6842880

約数和(自身を除く): 4034120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 71, 86, 92, 115, 142, 172, 184, 215, 230, 284, 344, 355, 430, 460, 568, 710, 860, 920, 989, 1420, 1633, 1720, 1978, 2840, 3053, 3266, 3956, 4945, 6106, 6532, 7912, 8165, 9890, 12212, 13064, 15265, 16330, 19780, 24424, 30530, 32660, 39560, 61060, 65320, 70219, 122120, 140438, 280876, 351095, 561752, 702190, 1404380, 2808760]

約数ペア:

[(1, 2808760), (2, 1404380), (4, 702190), (5, 561752), (8, 351095), (10, 280876), (20, 140438), (23, 122120), (40, 70219), (43, 65320), (46, 61060), (71, 39560), (86, 32660), (92, 30530), (115, 24424), (142, 19780), (172, 16330), (184, 15265), (215, 13064), (230, 12212), (284, 9890), (344, 8165), (355, 7912), (430, 6532), (460, 6106), (568, 4945), (710, 3956), (860, 3266), (920, 3053), (989, 2840), (1420, 1978), (1633, 1720)]