320487440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1$

素因数の和:390

約数の個数: 240

約数和(自身を含む): 985561920

約数和(自身を除く): 665074480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 35, 38, 40, 49, 52, 56, 65, 70, 76, 80, 91, 95, 98, 104, 112, 130, 133, 140, 152, 182, 190, 196, 208, 245, 247, 260, 266, 280, 304, 331, 364, 380, 392, 455, 490, 494, 520, 532, 560, 637, 662, 665, 728, 760, 784, 910, 931, 980, 988, 1040, 1064, 1235, 1274, 1324, 1330, 1456, 1520, 1655, 1729, 1820, 1862, 1960, 1976, 2128, 2317, 2470, 2548, 2648, 2660, 3185, 3310, 3458, 3640, 3724, 3920, 3952, 4303, 4634, 4655, 4940, 5096, 5296, 5320, 6289, 6370, 6620, 6916, 7280, 7448, 8606, 8645, 9268, 9310, 9880, 10192, 10640, 11585, 12103, 12578, 12740, 13240, 13832, 14896, 16219, 17212, 17290, 18536, 18620, 19760, 21515, 23170, 24206, 25156, 25480, 26480, 27664, 30121, 31445, 32438, 34424, 34580, 37072, 37240, 43030, 44023, 46340, 48412, 50312, 50960, 60242, 60515, 62890, 64876, 68848, 69160, 74480, 81095, 81757, 86060, 88046, 92680, 96824, 100624, 120484, 121030, 125780, 129752, 138320, 150605, 162190, 163514, 172120, 176092, 185360, 193648, 210847, 220115, 240968, 242060, 251560, 259504, 301210, 308161, 324380, 327028, 344240, 352184, 408785, 421694, 440230, 481936, 484120, 503120, 572299, 602420, 616322, 648760, 654056, 704368, 817570, 843388, 880460, 968240, 1054235, 1144598, 1204840, 1232644, 1297520, 1308112, 1540805, 1635140, 1686776, 1760920, 2108470, 2289196, 2409680, 2465288, 2861495, 3081610, 3270280, 3373552, 3521840, 4006093, 4216940, 4578392, 4930576, 5722990, 6163220, 6540560, 8012186, 8433880, 9156784, 11445980, 12326440, 16024372, 16867760, 20030465, 22891960, 24652880, 32048744, 40060930, 45783920, 64097488, 80121860, 160243720, 320487440]

約数ペア:

[(1, 320487440), (2, 160243720), (4, 80121860), (5, 64097488), (7, 45783920), (8, 40060930), (10, 32048744), (13, 24652880), (14, 22891960), (16, 20030465), (19, 16867760), (20, 16024372), (26, 12326440), (28, 11445980), (35, 9156784), (38, 8433880), (40, 8012186), (49, 6540560), (52, 6163220), (56, 5722990), (65, 4930576), (70, 4578392), (76, 4216940), (80, 4006093), (91, 3521840), (95, 3373552), (98, 3270280), (104, 3081610), (112, 2861495), (130, 2465288), (133, 2409680), (140, 2289196), (152, 2108470), (182, 1760920), (190, 1686776), (196, 1635140), (208, 1540805), (245, 1308112), (247, 1297520), (260, 1232644), (266, 1204840), (280, 1144598), (304, 1054235), (331, 968240), (364, 880460), (380, 843388), (392, 817570), (455, 704368), (490, 654056), (494, 648760), (520, 616322), (532, 602420), (560, 572299), (637, 503120), (662, 484120), (665, 481936), (728, 440230), (760, 421694), (784, 408785), (910, 352184), (931, 344240), (980, 327028), (988, 324380), (1040, 308161), (1064, 301210), (1235, 259504), (1274, 251560), (1324, 242060), (1330, 240968), (1456, 220115), (1520, 210847), (1655, 193648), (1729, 185360), (1820, 176092), (1862, 172120), (1960, 163514), (1976, 162190), (2128, 150605), (2317, 138320), (2470, 129752), (2548, 125780), (2648, 121030), (2660, 120484), (3185, 100624), (3310, 96824), (3458, 92680), (3640, 88046), (3724, 86060), (3920, 81757), (3952, 81095), (4303, 74480), (4634, 69160), (4655, 68848), (4940, 64876), (5096, 62890), (5296, 60515), (5320, 60242), (6289, 50960), (6370, 50312), (6620, 48412), (6916, 46340), (7280, 44023), (7448, 43030), (8606, 37240), (8645, 37072), (9268, 34580), (9310, 34424), (9880, 32438), (10192, 31445), (10640, 30121), (11585, 27664), (12103, 26480), (12578, 25480), (12740, 25156), (13240, 24206), (13832, 23170), (14896, 21515), (16219, 19760), (17212, 18620), (17290, 18536)]