309421280

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{647}}^1$

素因数の和:737

約数の個数: 144

約数和(自身を含む): 865632096

約数和(自身を除く): 556210816

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 61, 70, 80, 98, 112, 122, 140, 160, 196, 224, 244, 245, 280, 305, 392, 427, 488, 490, 560, 610, 647, 784, 854, 976, 980, 1120, 1220, 1294, 1568, 1708, 1952, 1960, 2135, 2440, 2588, 2989, 3235, 3416, 3920, 4270, 4529, 4880, 5176, 5978, 6470, 6832, 7840, 8540, 9058, 9760, 10352, 11956, 12940, 13664, 14945, 17080, 18116, 20704, 22645, 23912, 25880, 29890, 31703, 34160, 36232, 39467, 45290, 47824, 51760, 59780, 63406, 68320, 72464, 78934, 90580, 95648, 103520, 119560, 126812, 144928, 157868, 158515, 181160, 197335, 239120, 253624, 276269, 315736, 317030, 362320, 394670, 478240, 507248, 552538, 631472, 634060, 724640, 789340, 1014496, 1105076, 1262944, 1268120, 1381345, 1578680, 1933883, 2210152, 2536240, 2762690, 3157360, 3867766, 4420304, 5072480, 5525380, 6314720, 7735532, 8840608, 9669415, 11050760, 15471064, 19338830, 22101520, 30942128, 38677660, 44203040, 61884256, 77355320, 154710640, 309421280]

約数ペア:

[(1, 309421280), (2, 154710640), (4, 77355320), (5, 61884256), (7, 44203040), (8, 38677660), (10, 30942128), (14, 22101520), (16, 19338830), (20, 15471064), (28, 11050760), (32, 9669415), (35, 8840608), (40, 7735532), (49, 6314720), (56, 5525380), (61, 5072480), (70, 4420304), (80, 3867766), (98, 3157360), (112, 2762690), (122, 2536240), (140, 2210152), (160, 1933883), (196, 1578680), (224, 1381345), (244, 1268120), (245, 1262944), (280, 1105076), (305, 1014496), (392, 789340), (427, 724640), (488, 634060), (490, 631472), (560, 552538), (610, 507248), (647, 478240), (784, 394670), (854, 362320), (976, 317030), (980, 315736), (1120, 276269), (1220, 253624), (1294, 239120), (1568, 197335), (1708, 181160), (1952, 158515), (1960, 157868), (2135, 144928), (2440, 126812), (2588, 119560), (2989, 103520), (3235, 95648), (3416, 90580), (3920, 78934), (4270, 72464), (4529, 68320), (4880, 63406), (5176, 59780), (5978, 51760), (6470, 47824), (6832, 45290), (7840, 39467), (8540, 36232), (9058, 34160), (9760, 31703), (10352, 29890), (11956, 25880), (12940, 23912), (13664, 22645), (14945, 20704), (17080, 18116)]