280063280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{500113}}^1$

素因数の和:500133

約数の個数: 40

約数和(自身を含む): 744169632

約数和(自身を除く): 464106352

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 500113, 1000226, 2000452, 2500565, 3500791, 4000904, 5001130, 7001582, 8001808, 10002260, 14003164, 17503955, 20004520, 28006328, 35007910, 40009040, 56012656, 70015820, 140031640, 280063280]

約数ペア:

[(1, 280063280), (2, 140031640), (4, 70015820), (5, 56012656), (7, 40009040), (8, 35007910), (10, 28006328), (14, 20004520), (16, 17503955), (20, 14003164), (28, 10002260), (35, 8001808), (40, 7001582), (56, 5001130), (70, 4000904), (80, 3500791), (112, 2500565), (140, 2000452), (280, 1000226), (560, 500113)]