81707756

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{97}}^2\times {\mathrm{167}}^1$

素因数の和:378

約数の個数: 36

約数和(自身を含む): 156523248

約数和(自身を除く): 74815492

約数列:

[1, 2, 4, 13, 26, 52, 97, 167, 194, 334, 388, 668, 1261, 2171, 2522, 4342, 5044, 8684, 9409, 16199, 18818, 32398, 37636, 64796, 122317, 210587, 244634, 421174, 489268, 842348, 1571303, 3142606, 6285212, 20426939, 40853878, 81707756]

約数ペア:

[(1, 81707756), (2, 40853878), (4, 20426939), (13, 6285212), (26, 3142606), (52, 1571303), (97, 842348), (167, 489268), (194, 421174), (334, 244634), (388, 210587), (668, 122317), (1261, 64796), (2171, 37636), (2522, 32398), (4342, 18818), (5044, 16199), (8684, 9409)]