1308780

素因数分解:

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

素因数の和:687

約数の個数: 72

約数和(自身を含む): 4337424

約数和(自身を除く): 3028644

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 661, 990, 1322, 1980, 1983, 2644, 3305, 3966, 5949, 6610, 7271, 7932, 9915, 11898, 13220, 14542, 19830, 21813, 23796, 29084, 29745, 36355, 39660, 43626, 59490, 65439, 72710, 87252, 109065, 118980, 130878, 145420, 218130, 261756, 327195, 436260, 654390, 1308780]

約数ペア:

[(1, 1308780), (2, 654390), (3, 436260), (4, 327195), (5, 261756), (6, 218130), (9, 145420), (10, 130878), (11, 118980), (12, 109065), (15, 87252), (18, 72710), (20, 65439), (22, 59490), (30, 43626), (33, 39660), (36, 36355), (44, 29745), (45, 29084), (55, 23796), (60, 21813), (66, 19830), (90, 14542), (99, 13220), (110, 11898), (132, 9915), (165, 7932), (180, 7271), (198, 6610), (220, 5949), (330, 3966), (396, 3305), (495, 2644), (660, 1983), (661, 1980), (990, 1322)]