20185879900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{2381}}^1\times {\mathrm{4987}}^1$

素因数の和:7399

約数の個数: 72

約数和(自身を含む): 46408810896

約数和(自身を除く): 26222930996

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 850, 1700, 2381, 4762, 4987, 9524, 9974, 11905, 19948, 23810, 24935, 40477, 47620, 49870, 59525, 80954, 84779, 99740, 119050, 124675, 161908, 169558, 202385, 238100, 249350, 339116, 404770, 423895, 498700, 809540, 847790, 1011925, 1695580, 2023850, 2119475, 4047700, 4238950, 8477900, 11874047, 23748094, 47496188, 59370235, 118740470, 201858799, 237480940, 296851175, 403717598, 593702350, 807435196, 1009293995, 1187404700, 2018587990, 4037175980, 5046469975, 10092939950, 20185879900]

約数ペア:

[(1, 20185879900), (2, 10092939950), (4, 5046469975), (5, 4037175980), (10, 2018587990), (17, 1187404700), (20, 1009293995), (25, 807435196), (34, 593702350), (50, 403717598), (68, 296851175), (85, 237480940), (100, 201858799), (170, 118740470), (340, 59370235), (425, 47496188), (850, 23748094), (1700, 11874047), (2381, 8477900), (4762, 4238950), (4987, 4047700), (9524, 2119475), (9974, 2023850), (11905, 1695580), (19948, 1011925), (23810, 847790), (24935, 809540), (40477, 498700), (47620, 423895), (49870, 404770), (59525, 339116), (80954, 249350), (84779, 238100), (99740, 202385), (119050, 169558), (124675, 161908)]