20700100

素因数分解:

$2^2\times 5^2\times {\mathrm{317}}^1\times {\mathrm{653}}^1$

素因数の和:984

約数の個数: 36

約数和(自身を含む): 45129924

約数和(自身を除く): 24429824

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 317, 634, 653, 1268, 1306, 1585, 2612, 3170, 3265, 6340, 6530, 7925, 13060, 15850, 16325, 31700, 32650, 65300, 207001, 414002, 828004, 1035005, 2070010, 4140020, 5175025, 10350050, 20700100]

約数ペア:

[(1, 20700100), (2, 10350050), (4, 5175025), (5, 4140020), (10, 2070010), (20, 1035005), (25, 828004), (50, 414002), (100, 207001), (317, 65300), (634, 32650), (653, 31700), (1268, 16325), (1306, 15850), (1585, 13060), (2612, 7925), (3170, 6530), (3265, 6340)]