25994000

素因数分解:

$2^4\times 5^3\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:381

約数の個数: 80

約数和(自身を含む): 64589616

約数和(自身を除く): 38595616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 125, 164, 200, 205, 250, 317, 328, 400, 410, 500, 634, 656, 820, 1000, 1025, 1268, 1585, 1640, 2000, 2050, 2536, 3170, 3280, 4100, 5072, 5125, 6340, 7925, 8200, 10250, 12680, 12997, 15850, 16400, 20500, 25360, 25994, 31700, 39625, 41000, 51988, 63400, 64985, 79250, 82000, 103976, 126800, 129970, 158500, 207952, 259940, 317000, 324925, 519880, 634000, 649850, 1039760, 1299700, 1624625, 2599400, 3249250, 5198800, 6498500, 12997000, 25994000]

約数ペア:

[(1, 25994000), (2, 12997000), (4, 6498500), (5, 5198800), (8, 3249250), (10, 2599400), (16, 1624625), (20, 1299700), (25, 1039760), (40, 649850), (41, 634000), (50, 519880), (80, 324925), (82, 317000), (100, 259940), (125, 207952), (164, 158500), (200, 129970), (205, 126800), (250, 103976), (317, 82000), (328, 79250), (400, 64985), (410, 63400), (500, 51988), (634, 41000), (656, 39625), (820, 31700), (1000, 25994), (1025, 25360), (1268, 20500), (1585, 16400), (1640, 15850), (2000, 12997), (2050, 12680), (2536, 10250), (3170, 8200), (3280, 7925), (4100, 6340), (5072, 5125)]