247861120

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^3$

素因数の和:125

約数の個数: 128

約数和(自身を含む): 659393280

約数和(自身を除く): 411532160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 640, 806, 832, 961, 992, 1040, 1240, 1612, 1664, 1922, 1984, 2015, 2080, 2480, 3224, 3844, 3968, 4030, 4160, 4805, 4960, 6448, 7688, 8060, 8320, 9610, 9920, 12493, 12896, 15376, 16120, 19220, 19840, 24986, 25792, 29791, 30752, 32240, 38440, 49972, 51584, 59582, 61504, 62465, 64480, 76880, 99944, 119164, 123008, 124930, 128960, 148955, 153760, 199888, 238328, 249860, 257920, 297910, 307520, 387283, 399776, 476656, 499720, 595820, 615040, 774566, 799552, 953312, 999440, 1191640, 1549132, 1599104, 1906624, 1936415, 1998880, 2383280, 3098264, 3813248, 3872830, 3997760, 4766560, 6196528, 7745660, 7995520, 9533120, 12393056, 15491320, 19066240, 24786112, 30982640, 49572224, 61965280, 123930560, 247861120]

約数ペア:

[(1, 247861120), (2, 123930560), (4, 61965280), (5, 49572224), (8, 30982640), (10, 24786112), (13, 19066240), (16, 15491320), (20, 12393056), (26, 9533120), (31, 7995520), (32, 7745660), (40, 6196528), (52, 4766560), (62, 3997760), (64, 3872830), (65, 3813248), (80, 3098264), (104, 2383280), (124, 1998880), (128, 1936415), (130, 1906624), (155, 1599104), (160, 1549132), (208, 1191640), (248, 999440), (260, 953312), (310, 799552), (320, 774566), (403, 615040), (416, 595820), (496, 499720), (520, 476656), (620, 399776), (640, 387283), (806, 307520), (832, 297910), (961, 257920), (992, 249860), (1040, 238328), (1240, 199888), (1612, 153760), (1664, 148955), (1922, 128960), (1984, 124930), (2015, 123008), (2080, 119164), (2480, 99944), (3224, 76880), (3844, 64480), (3968, 62465), (4030, 61504), (4160, 59582), (4805, 51584), (4960, 49972), (6448, 38440), (7688, 32240), (8060, 30752), (8320, 29791), (9610, 25792), (9920, 24986), (12493, 19840), (12896, 19220), (15376, 16120)]