251161456

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1297}}^1$

素因数の和:1351

約数の個数: 120

約数和(自身を含む): 642198480

約数和(自身を除く): 391037024

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 38, 49, 52, 56, 76, 91, 98, 104, 112, 133, 152, 182, 196, 208, 247, 266, 304, 364, 392, 494, 532, 637, 728, 784, 931, 988, 1064, 1274, 1297, 1456, 1729, 1862, 1976, 2128, 2548, 2594, 3458, 3724, 3952, 5096, 5188, 6916, 7448, 9079, 10192, 10376, 12103, 13832, 14896, 16861, 18158, 20752, 24206, 24643, 27664, 33722, 36316, 48412, 49286, 63553, 67444, 72632, 96824, 98572, 118027, 127106, 134888, 145264, 172501, 193648, 197144, 236054, 254212, 269776, 320359, 345002, 394288, 472108, 508424, 640718, 690004, 826189, 944216, 1016848, 1207507, 1281436, 1380008, 1652378, 1888432, 2242513, 2415014, 2562872, 2760016, 3304756, 4485026, 4830028, 5125744, 6609512, 8970052, 9660056, 13219024, 15697591, 17940104, 19320112, 31395182, 35880208, 62790364, 125580728, 251161456]

約数ペア:

[(1, 251161456), (2, 125580728), (4, 62790364), (7, 35880208), (8, 31395182), (13, 19320112), (14, 17940104), (16, 15697591), (19, 13219024), (26, 9660056), (28, 8970052), (38, 6609512), (49, 5125744), (52, 4830028), (56, 4485026), (76, 3304756), (91, 2760016), (98, 2562872), (104, 2415014), (112, 2242513), (133, 1888432), (152, 1652378), (182, 1380008), (196, 1281436), (208, 1207507), (247, 1016848), (266, 944216), (304, 826189), (364, 690004), (392, 640718), (494, 508424), (532, 472108), (637, 394288), (728, 345002), (784, 320359), (931, 269776), (988, 254212), (1064, 236054), (1274, 197144), (1297, 193648), (1456, 172501), (1729, 145264), (1862, 134888), (1976, 127106), (2128, 118027), (2548, 98572), (2594, 96824), (3458, 72632), (3724, 67444), (3952, 63553), (5096, 49286), (5188, 48412), (6916, 36316), (7448, 33722), (9079, 27664), (10192, 24643), (10376, 24206), (12103, 20752), (13832, 18158), (14896, 16861)]