215461120

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:340

約数の個数: 144

約数和(自身を含む): 597502080

約数和(自身を除く): 382040960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 139, 140, 160, 173, 224, 256, 278, 280, 320, 346, 448, 556, 560, 640, 692, 695, 865, 896, 973, 1112, 1120, 1211, 1280, 1384, 1390, 1730, 1792, 1946, 2224, 2240, 2422, 2768, 2780, 3460, 3892, 4448, 4480, 4844, 4865, 5536, 5560, 6055, 6920, 7784, 8896, 8960, 9688, 9730, 11072, 11120, 12110, 13840, 15568, 17792, 19376, 19460, 22144, 22240, 24047, 24220, 27680, 31136, 35584, 38752, 38920, 44288, 44480, 48094, 48440, 55360, 62272, 77504, 77840, 88960, 96188, 96880, 110720, 120235, 124544, 155008, 155680, 168329, 177920, 192376, 193760, 221440, 240470, 249088, 310016, 311360, 336658, 384752, 387520, 480940, 622720, 673316, 769504, 775040, 841645, 961880, 1245440, 1346632, 1539008, 1550080, 1683290, 1923760, 2693264, 3078016, 3366580, 3847520, 5386528, 6156032, 6733160, 7695040, 10773056, 13466320, 15390080, 21546112, 26932640, 30780160, 43092224, 53865280, 107730560, 215461120]

約数ペア:

[(1, 215461120), (2, 107730560), (4, 53865280), (5, 43092224), (7, 30780160), (8, 26932640), (10, 21546112), (14, 15390080), (16, 13466320), (20, 10773056), (28, 7695040), (32, 6733160), (35, 6156032), (40, 5386528), (56, 3847520), (64, 3366580), (70, 3078016), (80, 2693264), (112, 1923760), (128, 1683290), (139, 1550080), (140, 1539008), (160, 1346632), (173, 1245440), (224, 961880), (256, 841645), (278, 775040), (280, 769504), (320, 673316), (346, 622720), (448, 480940), (556, 387520), (560, 384752), (640, 336658), (692, 311360), (695, 310016), (865, 249088), (896, 240470), (973, 221440), (1112, 193760), (1120, 192376), (1211, 177920), (1280, 168329), (1384, 155680), (1390, 155008), (1730, 124544), (1792, 120235), (1946, 110720), (2224, 96880), (2240, 96188), (2422, 88960), (2768, 77840), (2780, 77504), (3460, 62272), (3892, 55360), (4448, 48440), (4480, 48094), (4844, 44480), (4865, 44288), (5536, 38920), (5560, 38752), (6055, 35584), (6920, 31136), (7784, 27680), (8896, 24220), (8960, 24047), (9688, 22240), (9730, 22144), (11072, 19460), (11120, 19376), (12110, 17792), (13840, 15568)]