19528808140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{116981}}^1$

素因数の和:117498

約数の個数: 48

約数和(自身を含む): 43511688864

約数和(自身を除く): 23982880724

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 491, 982, 1964, 2455, 4910, 8347, 9820, 16694, 33388, 41735, 83470, 116981, 166940, 233962, 467924, 584905, 1169810, 1988677, 2339620, 3977354, 7954708, 9943385, 19886770, 39773540, 57437671, 114875342, 229750684, 287188355, 574376710, 976440407, 1148753420, 1952880814, 3905761628, 4882202035, 9764404070, 19528808140]

約数ペア:

[(1, 19528808140), (2, 9764404070), (4, 4882202035), (5, 3905761628), (10, 1952880814), (17, 1148753420), (20, 976440407), (34, 574376710), (68, 287188355), (85, 229750684), (170, 114875342), (340, 57437671), (491, 39773540), (982, 19886770), (1964, 9943385), (2455, 7954708), (4910, 3977354), (8347, 2339620), (9820, 1988677), (16694, 1169810), (33388, 584905), (41735, 467924), (83470, 233962), (116981, 166940)]