30812500

素因数分解:

$2^2\times 5^6\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:80

約数の個数: 84

約数和(自身を含む): 73827180

約数和(自身を除く): 43014680

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 29, 34, 50, 58, 68, 85, 100, 116, 125, 145, 170, 250, 290, 340, 425, 493, 500, 580, 625, 725, 850, 986, 1250, 1450, 1700, 1972, 2125, 2465, 2500, 2900, 3125, 3625, 4250, 4930, 6250, 7250, 8500, 9860, 10625, 12325, 12500, 14500, 15625, 18125, 21250, 24650, 31250, 36250, 42500, 49300, 53125, 61625, 62500, 72500, 90625, 106250, 123250, 181250, 212500, 246500, 265625, 308125, 362500, 453125, 531250, 616250, 906250, 1062500, 1232500, 1540625, 1812500, 3081250, 6162500, 7703125, 15406250, 30812500]

約数ペア:

[(1, 30812500), (2, 15406250), (4, 7703125), (5, 6162500), (10, 3081250), (17, 1812500), (20, 1540625), (25, 1232500), (29, 1062500), (34, 906250), (50, 616250), (58, 531250), (68, 453125), (85, 362500), (100, 308125), (116, 265625), (125, 246500), (145, 212500), (170, 181250), (250, 123250), (290, 106250), (340, 90625), (425, 72500), (493, 62500), (500, 61625), (580, 53125), (625, 49300), (725, 42500), (850, 36250), (986, 31250), (1250, 24650), (1450, 21250), (1700, 18125), (1972, 15625), (2125, 14500), (2465, 12500), (2500, 12325), (2900, 10625), (3125, 9860), (3625, 8500), (4250, 7250), (4930, 6250)]