20172571700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^2\times {\mathrm{383}}^1\times {\mathrm{1459}}^1$

素因数の和:1894

約数の個数: 108

約数和(自身を含む): 46352033280

約数和(自身を除く): 26179461580

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 361, 380, 383, 475, 722, 766, 950, 1444, 1459, 1532, 1805, 1900, 1915, 2918, 3610, 3830, 5836, 7220, 7277, 7295, 7660, 9025, 9575, 14554, 14590, 18050, 19150, 27721, 29108, 29180, 36100, 36385, 36475, 38300, 55442, 72770, 72950, 110884, 138263, 138605, 145540, 145900, 181925, 276526, 277210, 363850, 526699, 553052, 554420, 558797, 691315, 693025, 727700, 1053398, 1117594, 1382630, 1386050, 2106796, 2235188, 2633495, 2765260, 2772100, 2793985, 3456575, 5266990, 5587970, 6913150, 10533980, 10617143, 11175940, 13167475, 13826300, 13969925, 21234286, 26334950, 27939850, 42468572, 52669900, 53085715, 55879700, 106171430, 201725717, 212342860, 265428575, 403451434, 530857150, 806902868, 1008628585, 1061714300, 2017257170, 4034514340, 5043142925, 10086285850, 20172571700]

約数ペア:

[(1, 20172571700), (2, 10086285850), (4, 5043142925), (5, 4034514340), (10, 2017257170), (19, 1061714300), (20, 1008628585), (25, 806902868), (38, 530857150), (50, 403451434), (76, 265428575), (95, 212342860), (100, 201725717), (190, 106171430), (361, 55879700), (380, 53085715), (383, 52669900), (475, 42468572), (722, 27939850), (766, 26334950), (950, 21234286), (1444, 13969925), (1459, 13826300), (1532, 13167475), (1805, 11175940), (1900, 10617143), (1915, 10533980), (2918, 6913150), (3610, 5587970), (3830, 5266990), (5836, 3456575), (7220, 2793985), (7277, 2772100), (7295, 2765260), (7660, 2633495), (9025, 2235188), (9575, 2106796), (14554, 1386050), (14590, 1382630), (18050, 1117594), (19150, 1053398), (27721, 727700), (29108, 693025), (29180, 691315), (36100, 558797), (36385, 554420), (36475, 553052), (38300, 526699), (55442, 363850), (72770, 277210), (72950, 276526), (110884, 181925), (138263, 145900), (138605, 145540)]