81913246480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2999}}^1\times {\mathrm{26263}}^1$

素因数の和:29288

約数の個数: 80

約数和(自身を含む): 205174368000

約数和(自身を除く): 123261121520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2999, 5998, 11996, 14995, 23992, 26263, 29990, 38987, 47984, 52526, 59980, 77974, 105052, 119960, 131315, 155948, 194935, 210104, 239920, 262630, 311896, 341419, 389870, 420208, 525260, 623792, 682838, 779740, 1050520, 1365676, 1559480, 1707095, 2101040, 2731352, 3118960, 3414190, 5462704, 6828380, 13656760, 27313520, 78762737, 157525474, 315050948, 393813685, 630101896, 787627370, 1023915581, 1260203792, 1575254740, 2047831162, 3150509480, 4095662324, 5119577905, 6301018960, 8191324648, 10239155810, 16382649296, 20478311620, 40956623240, 81913246480]

約数ペア:

[(1, 81913246480), (2, 40956623240), (4, 20478311620), (5, 16382649296), (8, 10239155810), (10, 8191324648), (13, 6301018960), (16, 5119577905), (20, 4095662324), (26, 3150509480), (40, 2047831162), (52, 1575254740), (65, 1260203792), (80, 1023915581), (104, 787627370), (130, 630101896), (208, 393813685), (260, 315050948), (520, 157525474), (1040, 78762737), (2999, 27313520), (5998, 13656760), (11996, 6828380), (14995, 5462704), (23992, 3414190), (26263, 3118960), (29990, 2731352), (38987, 2101040), (47984, 1707095), (52526, 1559480), (59980, 1365676), (77974, 1050520), (105052, 779740), (119960, 682838), (131315, 623792), (155948, 525260), (194935, 420208), (210104, 389870), (239920, 341419), (262630, 311896)]