81325586

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{131}}^1$

素因数の和:231

約数の個数: 48

約数和(自身を含む): 141562080

約数和(自身を除く): 60236494

約数列:

[1, 2, 17, 19, 31, 34, 38, 62, 131, 262, 323, 527, 589, 646, 961, 1054, 1178, 1922, 2227, 2489, 4061, 4454, 4978, 8122, 10013, 16337, 18259, 20026, 32674, 36518, 42313, 69037, 77159, 84626, 125891, 138074, 154318, 251782, 310403, 620806, 1311703, 2140147, 2391929, 2623406, 4280294, 4783858, 40662793, 81325586]

約数ペア:

[(1, 81325586), (2, 40662793), (17, 4783858), (19, 4280294), (31, 2623406), (34, 2391929), (38, 2140147), (62, 1311703), (131, 620806), (262, 310403), (323, 251782), (527, 154318), (589, 138074), (646, 125891), (961, 84626), (1054, 77159), (1178, 69037), (1922, 42313), (2227, 36518), (2489, 32674), (4061, 20026), (4454, 18259), (4978, 16337), (8122, 10013)]