668445440

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{139}}^1$

素因数の和:207

約数の個数: 216

約数和(自身を含む): 1844873520

約数和(自身を除く): 1176428080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 128, 130, 136, 139, 160, 170, 208, 221, 256, 260, 272, 278, 289, 320, 340, 416, 442, 520, 544, 556, 578, 640, 680, 695, 832, 884, 1040, 1088, 1105, 1112, 1156, 1280, 1360, 1390, 1445, 1664, 1768, 1807, 2080, 2176, 2210, 2224, 2312, 2363, 2720, 2780, 2890, 3328, 3536, 3614, 3757, 4160, 4352, 4420, 4448, 4624, 4726, 5440, 5560, 5780, 7072, 7228, 7514, 8320, 8840, 8896, 9035, 9248, 9452, 10880, 11120, 11560, 11815, 14144, 14456, 15028, 16640, 17680, 17792, 18070, 18496, 18785, 18904, 21760, 22240, 23120, 23630, 28288, 28912, 30056, 30719, 35360, 35584, 36140, 36992, 37570, 37808, 40171, 44480, 46240, 47260, 56576, 57824, 60112, 61438, 70720, 72280, 73984, 75140, 75616, 80342, 88960, 92480, 94520, 115648, 120224, 122876, 141440, 144560, 150280, 151232, 153595, 160684, 177920, 184960, 189040, 200855, 231296, 240448, 245752, 282880, 289120, 300560, 302464, 307190, 321368, 369920, 378080, 401710, 462592, 480896, 491504, 522223, 578240, 601120, 604928, 614380, 642736, 756160, 803420, 961792, 983008, 1044446, 1156480, 1202240, 1228760, 1285472, 1512320, 1606840, 1966016, 2088892, 2312960, 2404480, 2457520, 2570944, 2611115, 3024640, 3213680, 3932032, 4177784, 4808960, 4915040, 5141888, 5222230, 6427360, 7864064, 8355568, 9830080, 10283776, 10444460, 12854720, 16711136, 19660160, 20888920, 25709440, 33422272, 39320320, 41777840, 51418880, 66844544, 83555680, 133689088, 167111360, 334222720, 668445440]

約数ペア:

[(1, 668445440), (2, 334222720), (4, 167111360), (5, 133689088), (8, 83555680), (10, 66844544), (13, 51418880), (16, 41777840), (17, 39320320), (20, 33422272), (26, 25709440), (32, 20888920), (34, 19660160), (40, 16711136), (52, 12854720), (64, 10444460), (65, 10283776), (68, 9830080), (80, 8355568), (85, 7864064), (104, 6427360), (128, 5222230), (130, 5141888), (136, 4915040), (139, 4808960), (160, 4177784), (170, 3932032), (208, 3213680), (221, 3024640), (256, 2611115), (260, 2570944), (272, 2457520), (278, 2404480), (289, 2312960), (320, 2088892), (340, 1966016), (416, 1606840), (442, 1512320), (520, 1285472), (544, 1228760), (556, 1202240), (578, 1156480), (640, 1044446), (680, 983008), (695, 961792), (832, 803420), (884, 756160), (1040, 642736), (1088, 614380), (1105, 604928), (1112, 601120), (1156, 578240), (1280, 522223), (1360, 491504), (1390, 480896), (1445, 462592), (1664, 401710), (1768, 378080), (1807, 369920), (2080, 321368), (2176, 307190), (2210, 302464), (2224, 300560), (2312, 289120), (2363, 282880), (2720, 245752), (2780, 240448), (2890, 231296), (3328, 200855), (3536, 189040), (3614, 184960), (3757, 177920), (4160, 160684), (4352, 153595), (4420, 151232), (4448, 150280), (4624, 144560), (4726, 141440), (5440, 122876), (5560, 120224), (5780, 115648), (7072, 94520), (7228, 92480), (7514, 88960), (8320, 80342), (8840, 75616), (8896, 75140), (9035, 73984), (9248, 72280), (9452, 70720), (10880, 61438), (11120, 60112), (11560, 57824), (11815, 56576), (14144, 47260), (14456, 46240), (15028, 44480), (16640, 40171), (17680, 37808), (17792, 37570), (18070, 36992), (18496, 36140), (18785, 35584), (18904, 35360), (21760, 30719), (22240, 30056), (23120, 28912), (23630, 28288)]