251617680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:434

約数の個数: 240

約数和(自身を含む): 912088944

約数和(自身を除く): 660471264

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 60, 61, 68, 72, 80, 85, 90, 102, 120, 122, 136, 144, 153, 170, 180, 183, 204, 240, 244, 255, 272, 305, 306, 337, 340, 360, 366, 408, 488, 510, 549, 610, 612, 674, 680, 720, 732, 765, 816, 915, 976, 1011, 1020, 1037, 1098, 1220, 1224, 1348, 1360, 1464, 1530, 1685, 1830, 2022, 2040, 2074, 2196, 2440, 2448, 2696, 2745, 2928, 3033, 3060, 3111, 3370, 3660, 4044, 4080, 4148, 4392, 4880, 5055, 5185, 5392, 5490, 5729, 6066, 6120, 6222, 6740, 7320, 8088, 8296, 8784, 9333, 10110, 10370, 10980, 11458, 12132, 12240, 12444, 13480, 14640, 15165, 15555, 16176, 16592, 17187, 18666, 20220, 20557, 20740, 21960, 22916, 24264, 24888, 26960, 28645, 30330, 31110, 34374, 37332, 40440, 41114, 41480, 43920, 45832, 46665, 48528, 49776, 51561, 57290, 60660, 61671, 62220, 68748, 74664, 80880, 82228, 82960, 85935, 91664, 93330, 102785, 103122, 114580, 121320, 123342, 124440, 137496, 149328, 164456, 171870, 185013, 186660, 205570, 206244, 229160, 242640, 246684, 248880, 257805, 274992, 308355, 328912, 343740, 349469, 370026, 373320, 411140, 412488, 458320, 493368, 515610, 616710, 687480, 698938, 740052, 746640, 822280, 824976, 925065, 986736, 1031220, 1048407, 1233420, 1374960, 1397876, 1480104, 1644560, 1747345, 1850130, 2062440, 2096814, 2466840, 2795752, 2960208, 3145221, 3494690, 3700260, 4124880, 4193628, 4933680, 5242035, 5591504, 6290442, 6989380, 7400520, 8387256, 10484070, 12580884, 13978760, 14801040, 15726105, 16774512, 20968140, 25161768, 27957520, 31452210, 41936280, 50323536, 62904420, 83872560, 125808840, 251617680]

約数ペア:

[(1, 251617680), (2, 125808840), (3, 83872560), (4, 62904420), (5, 50323536), (6, 41936280), (8, 31452210), (9, 27957520), (10, 25161768), (12, 20968140), (15, 16774512), (16, 15726105), (17, 14801040), (18, 13978760), (20, 12580884), (24, 10484070), (30, 8387256), (34, 7400520), (36, 6989380), (40, 6290442), (45, 5591504), (48, 5242035), (51, 4933680), (60, 4193628), (61, 4124880), (68, 3700260), (72, 3494690), (80, 3145221), (85, 2960208), (90, 2795752), (102, 2466840), (120, 2096814), (122, 2062440), (136, 1850130), (144, 1747345), (153, 1644560), (170, 1480104), (180, 1397876), (183, 1374960), (204, 1233420), (240, 1048407), (244, 1031220), (255, 986736), (272, 925065), (305, 824976), (306, 822280), (337, 746640), (340, 740052), (360, 698938), (366, 687480), (408, 616710), (488, 515610), (510, 493368), (549, 458320), (610, 412488), (612, 411140), (674, 373320), (680, 370026), (720, 349469), (732, 343740), (765, 328912), (816, 308355), (915, 274992), (976, 257805), (1011, 248880), (1020, 246684), (1037, 242640), (1098, 229160), (1220, 206244), (1224, 205570), (1348, 186660), (1360, 185013), (1464, 171870), (1530, 164456), (1685, 149328), (1830, 137496), (2022, 124440), (2040, 123342), (2074, 121320), (2196, 114580), (2440, 103122), (2448, 102785), (2696, 93330), (2745, 91664), (2928, 85935), (3033, 82960), (3060, 82228), (3111, 80880), (3370, 74664), (3660, 68748), (4044, 62220), (4080, 61671), (4148, 60660), (4392, 57290), (4880, 51561), (5055, 49776), (5185, 48528), (5392, 46665), (5490, 45832), (5729, 43920), (6066, 41480), (6120, 41114), (6222, 40440), (6740, 37332), (7320, 34374), (8088, 31110), (8296, 30330), (8784, 28645), (9333, 26960), (10110, 24888), (10370, 24264), (10980, 22916), (11458, 21960), (12132, 20740), (12240, 20557), (12444, 20220), (13480, 18666), (14640, 17187), (15165, 16592), (15555, 16176)]