872520

素因数分解:

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

素因数の和:686

約数の個数: 64

約数和(自身を含む): 2859840

約数和(自身を除く): 1987320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 661, 1320, 1322, 1983, 2644, 3305, 3966, 5288, 6610, 7271, 7932, 9915, 13220, 14542, 15864, 19830, 21813, 26440, 29084, 36355, 39660, 43626, 58168, 72710, 79320, 87252, 109065, 145420, 174504, 218130, 290840, 436260, 872520]

約数ペア:

[(1, 872520), (2, 436260), (3, 290840), (4, 218130), (5, 174504), (6, 145420), (8, 109065), (10, 87252), (11, 79320), (12, 72710), (15, 58168), (20, 43626), (22, 39660), (24, 36355), (30, 29084), (33, 26440), (40, 21813), (44, 19830), (55, 15864), (60, 14542), (66, 13220), (88, 9915), (110, 7932), (120, 7271), (132, 6610), (165, 5288), (220, 3966), (264, 3305), (330, 2644), (440, 1983), (660, 1322), (661, 1320)]