81170800

素因数分解:

$2^4\times 5^2\times {\mathrm{307}}^1\times {\mathrm{661}}^1$

素因数の和:986

約数の個数: 60

約数和(自身を含む): 195944056

約数和(自身を除く): 114773256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 307, 400, 614, 661, 1228, 1322, 1535, 2456, 2644, 3070, 3305, 4912, 5288, 6140, 6610, 7675, 10576, 12280, 13220, 15350, 16525, 24560, 26440, 30700, 33050, 52880, 61400, 66100, 122800, 132200, 202927, 264400, 405854, 811708, 1014635, 1623416, 2029270, 3246832, 4058540, 5073175, 8117080, 10146350, 16234160, 20292700, 40585400, 81170800]

約数ペア:

[(1, 81170800), (2, 40585400), (4, 20292700), (5, 16234160), (8, 10146350), (10, 8117080), (16, 5073175), (20, 4058540), (25, 3246832), (40, 2029270), (50, 1623416), (80, 1014635), (100, 811708), (200, 405854), (307, 264400), (400, 202927), (614, 132200), (661, 122800), (1228, 66100), (1322, 61400), (1535, 52880), (2456, 33050), (2644, 30700), (3070, 26440), (3305, 24560), (4912, 16525), (5288, 15350), (6140, 13220), (6610, 12280), (7675, 10576)]