261161140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1$

素因数の和:409

約数の個数: 96

約数和(自身を含む): 605283840

約数和(自身を除く): 344122700

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 59, 68, 85, 94, 118, 170, 188, 235, 236, 277, 295, 340, 470, 554, 590, 799, 940, 1003, 1108, 1180, 1385, 1598, 2006, 2770, 2773, 3196, 3995, 4012, 4709, 5015, 5540, 5546, 7990, 9418, 10030, 11092, 13019, 13865, 15980, 16343, 18836, 20060, 23545, 26038, 27730, 32686, 47090, 47141, 52076, 55460, 65095, 65372, 81715, 94180, 94282, 130190, 163430, 188564, 221323, 235705, 260380, 277831, 326860, 442646, 471410, 555662, 768121, 885292, 942820, 1106615, 1111324, 1389155, 1536242, 2213230, 2778310, 3072484, 3840605, 4426460, 5556620, 7681210, 13058057, 15362420, 26116114, 52232228, 65290285, 130580570, 261161140]

約数ペア:

[(1, 261161140), (2, 130580570), (4, 65290285), (5, 52232228), (10, 26116114), (17, 15362420), (20, 13058057), (34, 7681210), (47, 5556620), (59, 4426460), (68, 3840605), (85, 3072484), (94, 2778310), (118, 2213230), (170, 1536242), (188, 1389155), (235, 1111324), (236, 1106615), (277, 942820), (295, 885292), (340, 768121), (470, 555662), (554, 471410), (590, 442646), (799, 326860), (940, 277831), (1003, 260380), (1108, 235705), (1180, 221323), (1385, 188564), (1598, 163430), (2006, 130190), (2770, 94282), (2773, 94180), (3196, 81715), (3995, 65372), (4012, 65095), (4709, 55460), (5015, 52076), (5540, 47141), (5546, 47090), (7990, 32686), (9418, 27730), (10030, 26038), (11092, 23545), (13019, 20060), (13865, 18836), (15980, 16343)]