19896520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71059}}^1$

素因数の和:71077

約数の個数: 32

約数和(自身を含む): 51163200

約数和(自身を除く): 31266680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71059, 142118, 284236, 355295, 497413, 568472, 710590, 994826, 1421180, 1989652, 2487065, 2842360, 3979304, 4974130, 9948260, 19896520]

約数ペア:

[(1, 19896520), (2, 9948260), (4, 4974130), (5, 3979304), (7, 2842360), (8, 2487065), (10, 1989652), (14, 1421180), (20, 994826), (28, 710590), (35, 568472), (40, 497413), (56, 355295), (70, 284236), (140, 142118), (280, 71059)]