21590000

素因数分解:

$2^4\times 5^4\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:172

約数の個数: 100

約数和(自身を含む): 55782144

約数和(自身を除く): 34192144

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 125, 127, 136, 170, 200, 250, 254, 272, 340, 400, 425, 500, 508, 625, 635, 680, 850, 1000, 1016, 1250, 1270, 1360, 1700, 2000, 2032, 2125, 2159, 2500, 2540, 3175, 3400, 4250, 4318, 5000, 5080, 6350, 6800, 8500, 8636, 10000, 10160, 10625, 10795, 12700, 15875, 17000, 17272, 21250, 21590, 25400, 31750, 34000, 34544, 42500, 43180, 50800, 53975, 63500, 79375, 85000, 86360, 107950, 127000, 158750, 170000, 172720, 215900, 254000, 269875, 317500, 431800, 539750, 635000, 863600, 1079500, 1270000, 1349375, 2159000, 2698750, 4318000, 5397500, 10795000, 21590000]

約数ペア:

[(1, 21590000), (2, 10795000), (4, 5397500), (5, 4318000), (8, 2698750), (10, 2159000), (16, 1349375), (17, 1270000), (20, 1079500), (25, 863600), (34, 635000), (40, 539750), (50, 431800), (68, 317500), (80, 269875), (85, 254000), (100, 215900), (125, 172720), (127, 170000), (136, 158750), (170, 127000), (200, 107950), (250, 86360), (254, 85000), (272, 79375), (340, 63500), (400, 53975), (425, 50800), (500, 43180), (508, 42500), (625, 34544), (635, 34000), (680, 31750), (850, 25400), (1000, 21590), (1016, 21250), (1250, 17272), (1270, 17000), (1360, 15875), (1700, 12700), (2000, 10795), (2032, 10625), (2125, 10160), (2159, 10000), (2500, 8636), (2540, 8500), (3175, 6800), (3400, 6350), (4250, 5080), (4318, 5000)]