64857320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{661}}^1$

素因数の和:906

約数の個数: 64

約数和(自身を含む): 160151040

約数和(自身を除く): 95293720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 223, 440, 446, 661, 892, 1115, 1322, 1784, 2230, 2453, 2644, 3305, 4460, 4906, 5288, 6610, 7271, 8920, 9812, 12265, 13220, 14542, 19624, 24530, 26440, 29084, 36355, 49060, 58168, 72710, 98120, 145420, 147403, 290840, 294806, 589612, 737015, 1179224, 1474030, 1621433, 2948060, 3242866, 5896120, 6485732, 8107165, 12971464, 16214330, 32428660, 64857320]

約数ペア:

[(1, 64857320), (2, 32428660), (4, 16214330), (5, 12971464), (8, 8107165), (10, 6485732), (11, 5896120), (20, 3242866), (22, 2948060), (40, 1621433), (44, 1474030), (55, 1179224), (88, 737015), (110, 589612), (220, 294806), (223, 290840), (440, 147403), (446, 145420), (661, 98120), (892, 72710), (1115, 58168), (1322, 49060), (1784, 36355), (2230, 29084), (2453, 26440), (2644, 24530), (3305, 19624), (4460, 14542), (4906, 13220), (5288, 12265), (6610, 9812), (7271, 8920)]