421759120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{310117}}^1$

素因数の和:310147

約数の個数: 40

約数和(自身を含む): 1038275064

約数和(自身を除く): 616515944

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 310117, 620234, 1240468, 1550585, 2480936, 3101170, 4961872, 5271989, 6202340, 10543978, 12404680, 21087956, 24809360, 26359945, 42175912, 52719890, 84351824, 105439780, 210879560, 421759120]

約数ペア:

[(1, 421759120), (2, 210879560), (4, 105439780), (5, 84351824), (8, 52719890), (10, 42175912), (16, 26359945), (17, 24809360), (20, 21087956), (34, 12404680), (40, 10543978), (68, 6202340), (80, 5271989), (85, 4961872), (136, 3101170), (170, 2480936), (272, 1550585), (340, 1240468), (680, 620234), (1360, 310117)]