220164640

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15461}}^1$

素因数の和:15565

約数の個数: 48

約数和(自身を含む): 526017240

約数和(自身を除く): 305852600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1424, 1780, 2848, 3560, 7120, 14240, 15461, 30922, 61844, 77305, 123688, 154610, 247376, 309220, 494752, 618440, 1236880, 1376029, 2473760, 2752058, 5504116, 6880145, 11008232, 13760290, 22016464, 27520580, 44032928, 55041160, 110082320, 220164640]

約数ペア:

[(1, 220164640), (2, 110082320), (4, 55041160), (5, 44032928), (8, 27520580), (10, 22016464), (16, 13760290), (20, 11008232), (32, 6880145), (40, 5504116), (80, 2752058), (89, 2473760), (160, 1376029), (178, 1236880), (356, 618440), (445, 494752), (712, 309220), (890, 247376), (1424, 154610), (1780, 123688), (2848, 77305), (3560, 61844), (7120, 30922), (14240, 15461)]