81707950

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{991}}^1$

素因数の和:1117

約数の個数: 48

約数和(自身を含む): 162739584

約数和(自身を除く): 81031634

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 97, 170, 194, 425, 485, 850, 970, 991, 1649, 1982, 2425, 3298, 4850, 4955, 8245, 9910, 16490, 16847, 24775, 33694, 41225, 49550, 82450, 84235, 96127, 168470, 192254, 421175, 480635, 842350, 961270, 1634159, 2403175, 3268318, 4806350, 8170795, 16341590, 40853975, 81707950]

約数ペア:

[(1, 81707950), (2, 40853975), (5, 16341590), (10, 8170795), (17, 4806350), (25, 3268318), (34, 2403175), (50, 1634159), (85, 961270), (97, 842350), (170, 480635), (194, 421175), (425, 192254), (485, 168470), (850, 96127), (970, 84235), (991, 82450), (1649, 49550), (1982, 41225), (2425, 33694), (3298, 24775), (4850, 16847), (4955, 16490), (8245, 9910)]