208845440

素因数分解:

$2^7\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:250

約数の個数: 128

約数和(自身を含む): 523480320

約数和(自身を除く): 314634880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 53, 64, 80, 94, 106, 128, 131, 160, 188, 212, 235, 262, 265, 320, 376, 424, 470, 524, 530, 640, 655, 752, 848, 940, 1048, 1060, 1310, 1504, 1696, 1880, 2096, 2120, 2491, 2620, 3008, 3392, 3760, 4192, 4240, 4982, 5240, 6016, 6157, 6784, 6943, 7520, 8384, 8480, 9964, 10480, 12314, 12455, 13886, 15040, 16768, 16960, 19928, 20960, 24628, 24910, 27772, 30080, 30785, 33920, 34715, 39856, 41920, 49256, 49820, 55544, 61570, 69430, 79712, 83840, 98512, 99640, 111088, 123140, 138860, 159424, 197024, 199280, 222176, 246280, 277720, 318848, 326321, 394048, 398560, 444352, 492560, 555440, 652642, 788096, 797120, 888704, 985120, 1110880, 1305284, 1594240, 1631605, 1970240, 2221760, 2610568, 3263210, 3940480, 4443520, 5221136, 6526420, 10442272, 13052840, 20884544, 26105680, 41769088, 52211360, 104422720, 208845440]

約数ペア:

[(1, 208845440), (2, 104422720), (4, 52211360), (5, 41769088), (8, 26105680), (10, 20884544), (16, 13052840), (20, 10442272), (32, 6526420), (40, 5221136), (47, 4443520), (53, 3940480), (64, 3263210), (80, 2610568), (94, 2221760), (106, 1970240), (128, 1631605), (131, 1594240), (160, 1305284), (188, 1110880), (212, 985120), (235, 888704), (262, 797120), (265, 788096), (320, 652642), (376, 555440), (424, 492560), (470, 444352), (524, 398560), (530, 394048), (640, 326321), (655, 318848), (752, 277720), (848, 246280), (940, 222176), (1048, 199280), (1060, 197024), (1310, 159424), (1504, 138860), (1696, 123140), (1880, 111088), (2096, 99640), (2120, 98512), (2491, 83840), (2620, 79712), (3008, 69430), (3392, 61570), (3760, 55544), (4192, 49820), (4240, 49256), (4982, 41920), (5240, 39856), (6016, 34715), (6157, 33920), (6784, 30785), (6943, 30080), (7520, 27772), (8384, 24910), (8480, 24628), (9964, 20960), (10480, 19928), (12314, 16960), (12455, 16768), (13886, 15040)]