205675520

素因数分解:

$2^{10}\times 5^1\times {\mathrm{17}}^2\times {\mathrm{139}}^1$

素因数の和:198

約数の個数: 132

約数和(自身を含む): 527880360

約数和(自身を除く): 322204840

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 139, 160, 170, 256, 272, 278, 289, 320, 340, 512, 544, 556, 578, 640, 680, 695, 1024, 1088, 1112, 1156, 1280, 1360, 1390, 1445, 2176, 2224, 2312, 2363, 2560, 2720, 2780, 2890, 4352, 4448, 4624, 4726, 5120, 5440, 5560, 5780, 8704, 8896, 9248, 9452, 10880, 11120, 11560, 11815, 17408, 17792, 18496, 18904, 21760, 22240, 23120, 23630, 35584, 36992, 37808, 40171, 43520, 44480, 46240, 47260, 71168, 73984, 75616, 80342, 87040, 88960, 92480, 94520, 142336, 147968, 151232, 160684, 177920, 184960, 189040, 200855, 295936, 302464, 321368, 355840, 369920, 378080, 401710, 604928, 642736, 711680, 739840, 756160, 803420, 1209856, 1285472, 1479680, 1512320, 1606840, 2419712, 2570944, 3024640, 3213680, 5141888, 6049280, 6427360, 10283776, 12098560, 12854720, 20567552, 25709440, 41135104, 51418880, 102837760, 205675520]

約数ペア:

[(1, 205675520), (2, 102837760), (4, 51418880), (5, 41135104), (8, 25709440), (10, 20567552), (16, 12854720), (17, 12098560), (20, 10283776), (32, 6427360), (34, 6049280), (40, 5141888), (64, 3213680), (68, 3024640), (80, 2570944), (85, 2419712), (128, 1606840), (136, 1512320), (139, 1479680), (160, 1285472), (170, 1209856), (256, 803420), (272, 756160), (278, 739840), (289, 711680), (320, 642736), (340, 604928), (512, 401710), (544, 378080), (556, 369920), (578, 355840), (640, 321368), (680, 302464), (695, 295936), (1024, 200855), (1088, 189040), (1112, 184960), (1156, 177920), (1280, 160684), (1360, 151232), (1390, 147968), (1445, 142336), (2176, 94520), (2224, 92480), (2312, 88960), (2363, 87040), (2560, 80342), (2720, 75616), (2780, 73984), (2890, 71168), (4352, 47260), (4448, 46240), (4624, 44480), (4726, 43520), (5120, 40171), (5440, 37808), (5560, 36992), (5780, 35584), (8704, 23630), (8896, 23120), (9248, 22240), (9452, 21760), (10880, 18904), (11120, 18496), (11560, 17792), (11815, 17408)]