81559702978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{709}}^1\times {\mathrm{28181}}^1$

素因数の和:29062

約数の個数: 32

約数和(自身を含む): 132781183920

約数和(自身を除く): 51221480942

約数列:

[1, 2, 13, 26, 157, 314, 709, 1418, 2041, 4082, 9217, 18434, 28181, 56362, 111313, 222626, 366353, 732706, 1447069, 2894138, 4424417, 8848834, 19980329, 39960658, 57517421, 115034842, 259744277, 519488554, 3136911653, 6273823306, 40779851489, 81559702978]

約数ペア:

[(1, 81559702978), (2, 40779851489), (13, 6273823306), (26, 3136911653), (157, 519488554), (314, 259744277), (709, 115034842), (1418, 57517421), (2041, 39960658), (4082, 19980329), (9217, 8848834), (18434, 4424417), (28181, 2894138), (56362, 1447069), (111313, 732706), (222626, 366353)]