81303144

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{260587}}^1$

素因数の和:260609

約数の個数: 32

約数和(自身を含む): 218893920

約数和(自身を除く): 137590776

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 260587, 521174, 781761, 1042348, 1563522, 2084696, 3127044, 3387631, 6254088, 6775262, 10162893, 13550524, 20325786, 27101048, 40651572, 81303144]

約数ペア:

[(1, 81303144), (2, 40651572), (3, 27101048), (4, 20325786), (6, 13550524), (8, 10162893), (12, 6775262), (13, 6254088), (24, 3387631), (26, 3127044), (39, 2084696), (52, 1563522), (78, 1042348), (104, 781761), (156, 521174), (312, 260587)]