291857940

素因数分解:

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

素因数の和:910

約数の個数: 144

約数和(自身を含む): 971582976

約数和(自身を除く): 679725036

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, 223, 330, 396, 446, 495, 660, 661, 669, 892, 990, 1115, 1322, 1338, 1980, 1983, 2007, 2230, 2453, 2644, 2676, 3305, 3345, 3966, 4014, 4460, 4906, 5949, 6610, 6690, 7271, 7359, 7932, 8028, 9812, 9915, 10035, 11898, 12265, 13220, 13380, 14542, 14718, 19830, 20070, 21813, 22077, 23796, 24530, 29084, 29436, 29745, 36355, 36795, 39660, 40140, 43626, 44154, 49060, 59490, 65439, 72710, 73590, 87252, 88308, 109065, 110385, 118980, 130878, 145420, 147180, 147403, 218130, 220770, 261756, 294806, 327195, 436260, 441540, 442209, 589612, 654390, 737015, 884418, 1308780, 1326627, 1474030, 1621433, 1768836, 2211045, 2653254, 2948060, 3242866, 4422090, 4864299, 5306508, 6485732, 6633135, 8107165, 8844180, 9728598, 13266270, 14592897, 16214330, 19457196, 24321495, 26532540, 29185794, 32428660, 48642990, 58371588, 72964485, 97285980, 145928970, 291857940]

約数ペア:

[(1, 291857940), (2, 145928970), (3, 97285980), (4, 72964485), (5, 58371588), (6, 48642990), (9, 32428660), (10, 29185794), (11, 26532540), (12, 24321495), (15, 19457196), (18, 16214330), (20, 14592897), (22, 13266270), (30, 9728598), (33, 8844180), (36, 8107165), (44, 6633135), (45, 6485732), (55, 5306508), (60, 4864299), (66, 4422090), (90, 3242866), (99, 2948060), (110, 2653254), (132, 2211045), (165, 1768836), (180, 1621433), (198, 1474030), (220, 1326627), (223, 1308780), (330, 884418), (396, 737015), (446, 654390), (495, 589612), (660, 442209), (661, 441540), (669, 436260), (892, 327195), (990, 294806), (1115, 261756), (1322, 220770), (1338, 218130), (1980, 147403), (1983, 147180), (2007, 145420), (2230, 130878), (2453, 118980), (2644, 110385), (2676, 109065), (3305, 88308), (3345, 87252), (3966, 73590), (4014, 72710), (4460, 65439), (4906, 59490), (5949, 49060), (6610, 44154), (6690, 43626), (7271, 40140), (7359, 39660), (7932, 36795), (8028, 36355), (9812, 29745), (9915, 29436), (10035, 29084), (11898, 24530), (12265, 23796), (13220, 22077), (13380, 21813), (14542, 20070), (14718, 19830)]