257050000

素因数分解:

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

素因数の和:183

約数の個数: 120

約数和(自身を含む): 640787112

約数和(自身を除く): 383737112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 53, 80, 97, 100, 106, 125, 194, 200, 212, 250, 265, 388, 400, 424, 485, 500, 530, 625, 776, 848, 970, 1000, 1060, 1250, 1325, 1552, 1940, 2000, 2120, 2425, 2500, 2650, 3125, 3880, 4240, 4850, 5000, 5141, 5300, 6250, 6625, 7760, 9700, 10000, 10282, 10600, 12125, 12500, 13250, 19400, 20564, 21200, 24250, 25000, 25705, 26500, 33125, 38800, 41128, 48500, 50000, 51410, 53000, 60625, 66250, 82256, 97000, 102820, 106000, 121250, 128525, 132500, 165625, 194000, 205640, 242500, 257050, 265000, 303125, 331250, 411280, 485000, 514100, 530000, 606250, 642625, 662500, 970000, 1028200, 1212500, 1285250, 1325000, 2056400, 2425000, 2570500, 2650000, 3213125, 4850000, 5141000, 6426250, 10282000, 12852500, 16065625, 25705000, 32131250, 51410000, 64262500, 128525000, 257050000]

約数ペア:

[(1, 257050000), (2, 128525000), (4, 64262500), (5, 51410000), (8, 32131250), (10, 25705000), (16, 16065625), (20, 12852500), (25, 10282000), (40, 6426250), (50, 5141000), (53, 4850000), (80, 3213125), (97, 2650000), (100, 2570500), (106, 2425000), (125, 2056400), (194, 1325000), (200, 1285250), (212, 1212500), (250, 1028200), (265, 970000), (388, 662500), (400, 642625), (424, 606250), (485, 530000), (500, 514100), (530, 485000), (625, 411280), (776, 331250), (848, 303125), (970, 265000), (1000, 257050), (1060, 242500), (1250, 205640), (1325, 194000), (1552, 165625), (1940, 132500), (2000, 128525), (2120, 121250), (2425, 106000), (2500, 102820), (2650, 97000), (3125, 82256), (3880, 66250), (4240, 60625), (4850, 53000), (5000, 51410), (5141, 50000), (5300, 48500), (6250, 41128), (6625, 38800), (7760, 33125), (9700, 26500), (10000, 25705), (10282, 25000), (10600, 24250), (12125, 21200), (12500, 20564), (13250, 19400)]