290249920

素因数分解:

$2^6\times 5^1\times {\mathrm{907031}}^1$

素因数の和:907048

約数の個数: 28

約数和(自身を含む): 691158384

約数和(自身を除く): 400908464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 907031, 1814062, 3628124, 4535155, 7256248, 9070310, 14512496, 18140620, 29024992, 36281240, 58049984, 72562480, 145124960, 290249920]

約数ペア:

[(1, 290249920), (2, 145124960), (4, 72562480), (5, 58049984), (8, 36281240), (10, 29024992), (16, 18140620), (20, 14512496), (32, 9070310), (40, 7256248), (64, 4535155), (80, 3628124), (160, 1814062), (320, 907031)]