80702180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8389}}^1$

素因数の和:8448

約数の個数: 48

約数和(自身を含む): 187466160

約数和(自身を除く): 106763980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2405, 4810, 8389, 9620, 16778, 33556, 41945, 83890, 109057, 167780, 218114, 310393, 436228, 545285, 620786, 1090570, 1241572, 1551965, 2181140, 3103930, 4035109, 6207860, 8070218, 16140436, 20175545, 40351090, 80702180]

約数ペア:

[(1, 80702180), (2, 40351090), (4, 20175545), (5, 16140436), (10, 8070218), (13, 6207860), (20, 4035109), (26, 3103930), (37, 2181140), (52, 1551965), (65, 1241572), (74, 1090570), (130, 620786), (148, 545285), (185, 436228), (260, 310393), (370, 218114), (481, 167780), (740, 109057), (962, 83890), (1924, 41945), (2405, 33556), (4810, 16778), (8389, 9620)]