20851180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8761}}^1$

素因数の和:8794

約数の個数: 48

約数和(自身を含む): 52992576

約数和(自身を除く): 32141396

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 8761, 17522, 35044, 43805, 61327, 87610, 122654, 148937, 175220, 245308, 297874, 306635, 595748, 613270, 744685, 1042559, 1226540, 1489370, 2085118, 2978740, 4170236, 5212795, 10425590, 20851180]

約数ペア:

[(1, 20851180), (2, 10425590), (4, 5212795), (5, 4170236), (7, 2978740), (10, 2085118), (14, 1489370), (17, 1226540), (20, 1042559), (28, 744685), (34, 613270), (35, 595748), (68, 306635), (70, 297874), (85, 245308), (119, 175220), (140, 148937), (170, 122654), (238, 87610), (340, 61327), (476, 43805), (595, 35044), (1190, 17522), (2380, 8761)]