181787788

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{3181}}^1$

素因数の和:3362

約数の個数: 48

約数和(自身を含む): 394160704

約数和(自身を除く): 212372916

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 157, 182, 314, 364, 628, 1099, 2041, 2198, 3181, 4082, 4396, 6362, 8164, 12724, 14287, 22267, 28574, 41353, 44534, 57148, 82706, 89068, 165412, 289471, 499417, 578942, 998834, 1157884, 1997668, 3495919, 6492421, 6991838, 12984842, 13983676, 25969684, 45446947, 90893894, 181787788]

約数ペア:

[(1, 181787788), (2, 90893894), (4, 45446947), (7, 25969684), (13, 13983676), (14, 12984842), (26, 6991838), (28, 6492421), (52, 3495919), (91, 1997668), (157, 1157884), (182, 998834), (314, 578942), (364, 499417), (628, 289471), (1099, 165412), (2041, 89068), (2198, 82706), (3181, 57148), (4082, 44534), (4396, 41353), (6362, 28574), (8164, 22267), (12724, 14287)]