81273716

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{373}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 155823360

約数和(自身を除く): 74549644

約数列:

[1, 2, 4, 19, 38, 47, 61, 76, 94, 122, 188, 244, 373, 746, 893, 1159, 1492, 1786, 2318, 2867, 3572, 4636, 5734, 7087, 11468, 14174, 17531, 22753, 28348, 35062, 45506, 54473, 70124, 91012, 108946, 217892, 333089, 432307, 666178, 864614, 1069391, 1332356, 1729228, 2138782, 4277564, 20318429, 40636858, 81273716]

約数ペア:

[(1, 81273716), (2, 40636858), (4, 20318429), (19, 4277564), (38, 2138782), (47, 1729228), (61, 1332356), (76, 1069391), (94, 864614), (122, 666178), (188, 432307), (244, 333089), (373, 217892), (746, 108946), (893, 91012), (1159, 70124), (1492, 54473), (1786, 45506), (2318, 35062), (2867, 28348), (3572, 22753), (4636, 17531), (5734, 14174), (7087, 11468)]