20195540000

素因数分解:

$2^5\times 5^4\times {\mathrm{127}}^1\times {\mathrm{7951}}^1$

素因数の和:8108

約数の個数: 120

約数和(自身を含む): 50081568768

約数和(自身を除く): 29886028768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 127, 160, 200, 250, 254, 400, 500, 508, 625, 635, 800, 1000, 1016, 1250, 1270, 2000, 2032, 2500, 2540, 3175, 4000, 4064, 5000, 5080, 6350, 7951, 10000, 10160, 12700, 15875, 15902, 20000, 20320, 25400, 31750, 31804, 39755, 50800, 63500, 63608, 79375, 79510, 101600, 127000, 127216, 158750, 159020, 198775, 254000, 254432, 317500, 318040, 397550, 508000, 635000, 636080, 795100, 993875, 1009777, 1270000, 1272160, 1590200, 1987750, 2019554, 2540000, 3180400, 3975500, 4039108, 4969375, 5048885, 6360800, 7951000, 8078216, 9938750, 10097770, 15902000, 16156432, 19877500, 20195540, 25244425, 31804000, 32312864, 39755000, 40391080, 50488850, 79510000, 80782160, 100977700, 126222125, 159020000, 161564320, 201955400, 252444250, 403910800, 504888500, 631110625, 807821600, 1009777000, 1262221250, 2019554000, 2524442500, 4039108000, 5048885000, 10097770000, 20195540000]

約数ペア:

[(1, 20195540000), (2, 10097770000), (4, 5048885000), (5, 4039108000), (8, 2524442500), (10, 2019554000), (16, 1262221250), (20, 1009777000), (25, 807821600), (32, 631110625), (40, 504888500), (50, 403910800), (80, 252444250), (100, 201955400), (125, 161564320), (127, 159020000), (160, 126222125), (200, 100977700), (250, 80782160), (254, 79510000), (400, 50488850), (500, 40391080), (508, 39755000), (625, 32312864), (635, 31804000), (800, 25244425), (1000, 20195540), (1016, 19877500), (1250, 16156432), (1270, 15902000), (2000, 10097770), (2032, 9938750), (2500, 8078216), (2540, 7951000), (3175, 6360800), (4000, 5048885), (4064, 4969375), (5000, 4039108), (5080, 3975500), (6350, 3180400), (7951, 2540000), (10000, 2019554), (10160, 1987750), (12700, 1590200), (15875, 1272160), (15902, 1270000), (20000, 1009777), (20320, 993875), (25400, 795100), (31750, 636080), (31804, 635000), (39755, 508000), (50800, 397550), (63500, 318040), (63608, 317500), (79375, 254432), (79510, 254000), (101600, 198775), (127000, 159020), (127216, 158750)]