131195480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1607}}^1$

素因数の和:1788

約数の個数: 64

約数和(自身を含む): 320120640

約数和(自身を除く): 188925160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 157, 260, 314, 520, 628, 785, 1256, 1570, 1607, 2041, 3140, 3214, 4082, 6280, 6428, 8035, 8164, 10205, 12856, 16070, 16328, 20410, 20891, 32140, 40820, 41782, 64280, 81640, 83564, 104455, 167128, 208910, 252299, 417820, 504598, 835640, 1009196, 1261495, 2018392, 2522990, 3279887, 5045980, 6559774, 10091960, 13119548, 16399435, 26239096, 32798870, 65597740, 131195480]

約数ペア:

[(1, 131195480), (2, 65597740), (4, 32798870), (5, 26239096), (8, 16399435), (10, 13119548), (13, 10091960), (20, 6559774), (26, 5045980), (40, 3279887), (52, 2522990), (65, 2018392), (104, 1261495), (130, 1009196), (157, 835640), (260, 504598), (314, 417820), (520, 252299), (628, 208910), (785, 167128), (1256, 104455), (1570, 83564), (1607, 81640), (2041, 64280), (3140, 41782), (3214, 40820), (4082, 32140), (6280, 20891), (6428, 20410), (8035, 16328), (8164, 16070), (10205, 12856)]