318727520

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28057}}^1$

素因数の和:28143

約数の個数: 48

約数和(自身を含む): 763626528

約数和(自身を除く): 444899008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 11360, 28057, 56114, 112228, 140285, 224456, 280570, 448912, 561140, 897824, 1122280, 1992047, 2244560, 3984094, 4489120, 7968188, 9960235, 15936376, 19920470, 31872752, 39840940, 63745504, 79681880, 159363760, 318727520]

約数ペア:

[(1, 318727520), (2, 159363760), (4, 79681880), (5, 63745504), (8, 39840940), (10, 31872752), (16, 19920470), (20, 15936376), (32, 9960235), (40, 7968188), (71, 4489120), (80, 3984094), (142, 2244560), (160, 1992047), (284, 1122280), (355, 897824), (568, 561140), (710, 448912), (1136, 280570), (1420, 224456), (2272, 140285), (2840, 112228), (5680, 56114), (11360, 28057)]