28710836

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{97}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 65395008

約数和(自身を除く): 36684172

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 97, 124, 154, 194, 217, 308, 341, 388, 434, 679, 682, 868, 961, 1067, 1358, 1364, 1922, 2134, 2387, 2716, 3007, 3844, 4268, 4774, 6014, 6727, 7469, 9548, 10571, 12028, 13454, 14938, 21049, 21142, 26908, 29876, 33077, 42098, 42284, 66154, 73997, 84196, 93217, 132308, 147994, 186434, 231539, 295988, 372868, 463078, 652519, 926156, 1025387, 1305038, 2050774, 2610076, 4101548, 7177709, 14355418, 28710836]

約数ペア:

[(1, 28710836), (2, 14355418), (4, 7177709), (7, 4101548), (11, 2610076), (14, 2050774), (22, 1305038), (28, 1025387), (31, 926156), (44, 652519), (62, 463078), (77, 372868), (97, 295988), (124, 231539), (154, 186434), (194, 147994), (217, 132308), (308, 93217), (341, 84196), (388, 73997), (434, 66154), (679, 42284), (682, 42098), (868, 33077), (961, 29876), (1067, 26908), (1358, 21142), (1364, 21049), (1922, 14938), (2134, 13454), (2387, 12028), (2716, 10571), (3007, 9548), (3844, 7469), (4268, 6727), (4774, 6014)]