498817280

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{967}}^1$

素因数の和:1032

約数の個数: 144

約数和(自身を含む): 1329613824

約数和(自身を除く): 830796544

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, 967, 992, 1040, 1240, 1280, 1612, 1664, 1934, 1984, 2015, 2080, 2480, 3224, 3328, 3868, 3968, 4030, 4160, 4835, 4960, 6448, 7736, 7936, 8060, 8320, 9670, 9920, 12571, 12896, 15472, 16120, 16640, 19340, 19840, 25142, 25792, 29977, 30944, 32240, 38680, 39680, 50284, 51584, 59954, 61888, 62855, 64480, 77360, 100568, 103168, 119908, 123776, 125710, 128960, 149885, 154720, 201136, 239816, 247552, 251420, 257920, 299770, 309440, 389701, 402272, 479632, 502840, 515840, 599540, 618880, 779402, 804544, 959264, 1005680, 1199080, 1237760, 1558804, 1609088, 1918528, 1948505, 2011360, 2398160, 3117608, 3218176, 3837056, 3897010, 4022720, 4796320, 6235216, 7674112, 7794020, 8045440, 9592640, 12470432, 15588040, 16090880, 19185280, 24940864, 31176080, 38370560, 49881728, 62352160, 99763456, 124704320, 249408640, 498817280]

約数ペア:

[(1, 498817280), (2, 249408640), (4, 124704320), (5, 99763456), (8, 62352160), (10, 49881728), (13, 38370560), (16, 31176080), (20, 24940864), (26, 19185280), (31, 16090880), (32, 15588040), (40, 12470432), (52, 9592640), (62, 8045440), (64, 7794020), (65, 7674112), (80, 6235216), (104, 4796320), (124, 4022720), (128, 3897010), (130, 3837056), (155, 3218176), (160, 3117608), (208, 2398160), (248, 2011360), (256, 1948505), (260, 1918528), (310, 1609088), (320, 1558804), (403, 1237760), (416, 1199080), (496, 1005680), (520, 959264), (620, 804544), (640, 779402), (806, 618880), (832, 599540), (967, 515840), (992, 502840), (1040, 479632), (1240, 402272), (1280, 389701), (1612, 309440), (1664, 299770), (1934, 257920), (1984, 251420), (2015, 247552), (2080, 239816), (2480, 201136), (3224, 154720), (3328, 149885), (3868, 128960), (3968, 125710), (4030, 123776), (4160, 119908), (4835, 103168), (4960, 100568), (6448, 77360), (7736, 64480), (7936, 62855), (8060, 61888), (8320, 59954), (9670, 51584), (9920, 50284), (12571, 39680), (12896, 38680), (15472, 32240), (16120, 30944), (16640, 29977), (19340, 25792), (19840, 25142)]