256503520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:337

約数の個数: 192

約数和(自身を含む): 758661120

約数和(自身を除く): 502157600

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 79, 80, 91, 104, 112, 130, 140, 158, 160, 182, 208, 223, 224, 260, 280, 316, 364, 395, 416, 446, 455, 520, 553, 560, 632, 728, 790, 892, 910, 1027, 1040, 1106, 1115, 1120, 1264, 1456, 1561, 1580, 1784, 1820, 2054, 2080, 2212, 2230, 2528, 2765, 2899, 2912, 3122, 3160, 3568, 3640, 4108, 4424, 4460, 5135, 5530, 5798, 6244, 6320, 7136, 7189, 7280, 7805, 8216, 8848, 8920, 10270, 11060, 11596, 12488, 12640, 14378, 14495, 14560, 15610, 16432, 17617, 17696, 17840, 20293, 20540, 22120, 23192, 24976, 28756, 28990, 31220, 32864, 35234, 35680, 35945, 40586, 41080, 44240, 46384, 49952, 57512, 57980, 62440, 70468, 71890, 81172, 82160, 88085, 88480, 92768, 101465, 115024, 115960, 123319, 124880, 140936, 143780, 162344, 164320, 176170, 202930, 229021, 230048, 231920, 246638, 249760, 281872, 287560, 324688, 352340, 405860, 458042, 463840, 493276, 563744, 575120, 616595, 649376, 704680, 811720, 916084, 986552, 1145105, 1150240, 1233190, 1409360, 1603147, 1623440, 1832168, 1973104, 2290210, 2466380, 2818720, 3206294, 3246880, 3664336, 3946208, 4580420, 4932760, 6412588, 7328672, 8015735, 9160840, 9865520, 12825176, 16031470, 18321680, 19731040, 25650352, 32062940, 36643360, 51300704, 64125880, 128251760, 256503520]

約数ペア:

[(1, 256503520), (2, 128251760), (4, 64125880), (5, 51300704), (7, 36643360), (8, 32062940), (10, 25650352), (13, 19731040), (14, 18321680), (16, 16031470), (20, 12825176), (26, 9865520), (28, 9160840), (32, 8015735), (35, 7328672), (40, 6412588), (52, 4932760), (56, 4580420), (65, 3946208), (70, 3664336), (79, 3246880), (80, 3206294), (91, 2818720), (104, 2466380), (112, 2290210), (130, 1973104), (140, 1832168), (158, 1623440), (160, 1603147), (182, 1409360), (208, 1233190), (223, 1150240), (224, 1145105), (260, 986552), (280, 916084), (316, 811720), (364, 704680), (395, 649376), (416, 616595), (446, 575120), (455, 563744), (520, 493276), (553, 463840), (560, 458042), (632, 405860), (728, 352340), (790, 324688), (892, 287560), (910, 281872), (1027, 249760), (1040, 246638), (1106, 231920), (1115, 230048), (1120, 229021), (1264, 202930), (1456, 176170), (1561, 164320), (1580, 162344), (1784, 143780), (1820, 140936), (2054, 124880), (2080, 123319), (2212, 115960), (2230, 115024), (2528, 101465), (2765, 92768), (2899, 88480), (2912, 88085), (3122, 82160), (3160, 81172), (3568, 71890), (3640, 70468), (4108, 62440), (4424, 57980), (4460, 57512), (5135, 49952), (5530, 46384), (5798, 44240), (6244, 41080), (6320, 40586), (7136, 35945), (7189, 35680), (7280, 35234), (7805, 32864), (8216, 31220), (8848, 28990), (8920, 28756), (10270, 24976), (11060, 23192), (11596, 22120), (12488, 20540), (12640, 20293), (14378, 17840), (14495, 17696), (14560, 17617), (15610, 16432)]