81841396

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1489}}^1$

素因数の和:1664

約数の個数: 48

約数和(自身を含む): 177560320

約数和(自身を除く): 95718924

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 151, 182, 302, 364, 604, 1057, 1489, 1963, 2114, 2978, 3926, 4228, 5956, 7852, 10423, 13741, 19357, 20846, 27482, 38714, 41692, 54964, 77428, 135499, 224839, 270998, 449678, 541996, 899356, 1573873, 2922907, 3147746, 5845814, 6295492, 11691628, 20460349, 40920698, 81841396]

約数ペア:

[(1, 81841396), (2, 40920698), (4, 20460349), (7, 11691628), (13, 6295492), (14, 5845814), (26, 3147746), (28, 2922907), (52, 1573873), (91, 899356), (151, 541996), (182, 449678), (302, 270998), (364, 224839), (604, 135499), (1057, 77428), (1489, 54964), (1963, 41692), (2114, 38714), (2978, 27482), (3926, 20846), (4228, 19357), (5956, 13741), (7852, 10423)]