81553264

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:266

約数の個数: 80

約数和(自身を含む): 178051104

約数和(自身を除く): 96497840

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 73, 82, 104, 131, 146, 164, 208, 262, 292, 328, 524, 533, 584, 656, 949, 1048, 1066, 1168, 1703, 1898, 2096, 2132, 2993, 3406, 3796, 4264, 5371, 5986, 6812, 7592, 8528, 9563, 10742, 11972, 13624, 15184, 19126, 21484, 23944, 27248, 38252, 38909, 42968, 47888, 69823, 76504, 77818, 85936, 124319, 139646, 153008, 155636, 248638, 279292, 311272, 392083, 497276, 558584, 622544, 784166, 994552, 1117168, 1568332, 1989104, 3136664, 5097079, 6273328, 10194158, 20388316, 40776632, 81553264]

約数ペア:

[(1, 81553264), (2, 40776632), (4, 20388316), (8, 10194158), (13, 6273328), (16, 5097079), (26, 3136664), (41, 1989104), (52, 1568332), (73, 1117168), (82, 994552), (104, 784166), (131, 622544), (146, 558584), (164, 497276), (208, 392083), (262, 311272), (292, 279292), (328, 248638), (524, 155636), (533, 153008), (584, 139646), (656, 124319), (949, 85936), (1048, 77818), (1066, 76504), (1168, 69823), (1703, 47888), (1898, 42968), (2096, 38909), (2132, 38252), (2993, 27248), (3406, 23944), (3796, 21484), (4264, 19126), (5371, 15184), (5986, 13624), (6812, 11972), (7592, 10742), (8528, 9563)]