495722240

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^3$

素因数の和:127

約数の個数: 144

約数和(自身を含む): 1321372416

約数和(自身を除く): 825650176

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, 256, 260, 310, 320, 403, 416, 496, 520, 620, 640, 806, 832, 961, 992, 1040, 1240, 1280, 1612, 1664, 1922, 1984, 2015, 2080, 2480, 3224, 3328, 3844, 3968, 4030, 4160, 4805, 4960, 6448, 7688, 7936, 8060, 8320, 9610, 9920, 12493, 12896, 15376, 16120, 16640, 19220, 19840, 24986, 25792, 29791, 30752, 32240, 38440, 39680, 49972, 51584, 59582, 61504, 62465, 64480, 76880, 99944, 103168, 119164, 123008, 124930, 128960, 148955, 153760, 199888, 238328, 246016, 249860, 257920, 297910, 307520, 387283, 399776, 476656, 499720, 515840, 595820, 615040, 774566, 799552, 953312, 999440, 1191640, 1230080, 1549132, 1599104, 1906624, 1936415, 1998880, 2383280, 3098264, 3198208, 3813248, 3872830, 3997760, 4766560, 6196528, 7626496, 7745660, 7995520, 9533120, 12393056, 15491320, 15991040, 19066240, 24786112, 30982640, 38132480, 49572224, 61965280, 99144448, 123930560, 247861120, 495722240]

約数ペア:

[(1, 495722240), (2, 247861120), (4, 123930560), (5, 99144448), (8, 61965280), (10, 49572224), (13, 38132480), (16, 30982640), (20, 24786112), (26, 19066240), (31, 15991040), (32, 15491320), (40, 12393056), (52, 9533120), (62, 7995520), (64, 7745660), (65, 7626496), (80, 6196528), (104, 4766560), (124, 3997760), (128, 3872830), (130, 3813248), (155, 3198208), (160, 3098264), (208, 2383280), (248, 1998880), (256, 1936415), (260, 1906624), (310, 1599104), (320, 1549132), (403, 1230080), (416, 1191640), (496, 999440), (520, 953312), (620, 799552), (640, 774566), (806, 615040), (832, 595820), (961, 515840), (992, 499720), (1040, 476656), (1240, 399776), (1280, 387283), (1612, 307520), (1664, 297910), (1922, 257920), (1984, 249860), (2015, 246016), (2080, 238328), (2480, 199888), (3224, 153760), (3328, 148955), (3844, 128960), (3968, 124930), (4030, 123008), (4160, 119164), (4805, 103168), (4960, 99944), (6448, 76880), (7688, 64480), (7936, 62465), (8060, 61504), (8320, 59582), (9610, 51584), (9920, 49972), (12493, 39680), (12896, 38440), (15376, 32240), (16120, 30752), (16640, 29791), (19220, 25792), (19840, 24986)]