218883925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{229}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 312636240

約数和(自身を除く): 93752315

約数列:

[1, 5, 13, 17, 25, 65, 85, 173, 221, 229, 325, 425, 865, 1105, 1145, 2249, 2941, 2977, 3893, 4325, 5525, 5725, 11245, 14705, 14885, 19465, 38233, 39617, 50609, 56225, 73525, 74425, 97325, 191165, 198085, 253045, 515021, 673489, 955825, 990425, 1265225, 2575105, 3367445, 8755357, 12875525, 16837225, 43776785, 218883925]

約数ペア:

[(1, 218883925), (5, 43776785), (13, 16837225), (17, 12875525), (25, 8755357), (65, 3367445), (85, 2575105), (173, 1265225), (221, 990425), (229, 955825), (325, 673489), (425, 515021), (865, 253045), (1105, 198085), (1145, 191165), (2249, 97325), (2941, 74425), (2977, 73525), (3893, 56225), (4325, 50609), (5525, 39617), (5725, 38233), (11245, 19465), (14705, 14885)]