25705000

素因数分解:

$2^3\times 5^4\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:176

約数の個数: 80

約数和(自身を含む): 61995780

約数和(自身を除く): 36290780

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 97, 100, 106, 125, 194, 200, 212, 250, 265, 388, 424, 485, 500, 530, 625, 776, 970, 1000, 1060, 1250, 1325, 1940, 2120, 2425, 2500, 2650, 3880, 4850, 5000, 5141, 5300, 6625, 9700, 10282, 10600, 12125, 13250, 19400, 20564, 24250, 25705, 26500, 33125, 41128, 48500, 51410, 53000, 60625, 66250, 97000, 102820, 121250, 128525, 132500, 205640, 242500, 257050, 265000, 485000, 514100, 642625, 1028200, 1285250, 2570500, 3213125, 5141000, 6426250, 12852500, 25705000]

約数ペア:

[(1, 25705000), (2, 12852500), (4, 6426250), (5, 5141000), (8, 3213125), (10, 2570500), (20, 1285250), (25, 1028200), (40, 642625), (50, 514100), (53, 485000), (97, 265000), (100, 257050), (106, 242500), (125, 205640), (194, 132500), (200, 128525), (212, 121250), (250, 102820), (265, 97000), (388, 66250), (424, 60625), (485, 53000), (500, 51410), (530, 48500), (625, 41128), (776, 33125), (970, 26500), (1000, 25705), (1060, 24250), (1250, 20564), (1325, 19400), (1940, 13250), (2120, 12125), (2425, 10600), (2500, 10282), (2650, 9700), (3880, 6625), (4850, 5300), (5000, 5141)]