78881985

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6421}}^1$

素因数の和:6455

約数の個数: 64

約数和(自身を含む): 172623360

約数和(自身を除く): 93741375

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 27, 35, 39, 45, 63, 65, 91, 105, 117, 135, 189, 195, 273, 315, 351, 455, 585, 819, 945, 1365, 1755, 2457, 4095, 6421, 12285, 19263, 32105, 44947, 57789, 83473, 96315, 134841, 173367, 224735, 250419, 288945, 404523, 417365, 584311, 674205, 751257, 866835, 1213569, 1252095, 1752933, 2022615, 2253771, 2921555, 3756285, 5258799, 6067845, 8764665, 11268855, 15776397, 26293995, 78881985]

約数ペア:

[(1, 78881985), (3, 26293995), (5, 15776397), (7, 11268855), (9, 8764665), (13, 6067845), (15, 5258799), (21, 3756285), (27, 2921555), (35, 2253771), (39, 2022615), (45, 1752933), (63, 1252095), (65, 1213569), (91, 866835), (105, 751257), (117, 674205), (135, 584311), (189, 417365), (195, 404523), (273, 288945), (315, 250419), (351, 224735), (455, 173367), (585, 134841), (819, 96315), (945, 83473), (1365, 57789), (1755, 44947), (2457, 32105), (4095, 19263), (6421, 12285)]