81390016

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{313}}^1$

素因数の和:581

約数の個数: 56

約数和(自身を含む): 172272960

約数和(自身を除く): 90882944

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 136, 239, 272, 313, 478, 544, 626, 956, 1088, 1252, 1912, 2504, 3824, 4063, 5008, 5321, 7648, 8126, 10016, 10642, 15296, 16252, 20032, 21284, 32504, 42568, 65008, 74807, 85136, 130016, 149614, 170272, 260032, 299228, 340544, 598456, 1196912, 1271719, 2393824, 2543438, 4787648, 5086876, 10173752, 20347504, 40695008, 81390016]

約数ペア:

[(1, 81390016), (2, 40695008), (4, 20347504), (8, 10173752), (16, 5086876), (17, 4787648), (32, 2543438), (34, 2393824), (64, 1271719), (68, 1196912), (136, 598456), (239, 340544), (272, 299228), (313, 260032), (478, 170272), (544, 149614), (626, 130016), (956, 85136), (1088, 74807), (1252, 65008), (1912, 42568), (2504, 32504), (3824, 21284), (4063, 20032), (5008, 16252), (5321, 15296), (7648, 10642), (8126, 10016)]