20121479965

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{653}}^1\times {\mathrm{5701}}^1$

素因数の和:6429

約数の個数: 32

約数和(自身を含む): 25775594496

約数和(自身を除く): 5654114531

約数列:

[1, 5, 23, 47, 115, 235, 653, 1081, 3265, 5405, 5701, 15019, 28505, 30691, 75095, 131123, 153455, 267947, 655615, 705893, 1339735, 3529465, 3722753, 6162781, 18613765, 30813905, 85623319, 174969391, 428116595, 874846955, 4024295993, 20121479965]

約数ペア:

[(1, 20121479965), (5, 4024295993), (23, 874846955), (47, 428116595), (115, 174969391), (235, 85623319), (653, 30813905), (1081, 18613765), (3265, 6162781), (5405, 3722753), (5701, 3529465), (15019, 1339735), (28505, 705893), (30691, 655615), (75095, 267947), (131123, 153455)]