28612845

素因数分解:

$3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:144

約数の個数: 80

約数和(自身を含む): 55199232

約数和(自身を除く): 26586387

約数列:

[1, 3, 5, 9, 15, 27, 31, 43, 45, 53, 81, 93, 129, 135, 155, 159, 215, 265, 279, 387, 405, 465, 477, 645, 795, 837, 1161, 1333, 1395, 1431, 1643, 1935, 2279, 2385, 2511, 3483, 3999, 4185, 4293, 4929, 5805, 6665, 6837, 7155, 8215, 11395, 11997, 12555, 14787, 17415, 19995, 20511, 21465, 24645, 34185, 35991, 44361, 59985, 61533, 70649, 73935, 102555, 107973, 133083, 179955, 184599, 211947, 221805, 307665, 353245, 539865, 635841, 665415, 922995, 1059735, 1907523, 3179205, 5722569, 9537615, 28612845]

約数ペア:

[(1, 28612845), (3, 9537615), (5, 5722569), (9, 3179205), (15, 1907523), (27, 1059735), (31, 922995), (43, 665415), (45, 635841), (53, 539865), (81, 353245), (93, 307665), (129, 221805), (135, 211947), (155, 184599), (159, 179955), (215, 133083), (265, 107973), (279, 102555), (387, 73935), (405, 70649), (465, 61533), (477, 59985), (645, 44361), (795, 35991), (837, 34185), (1161, 24645), (1333, 21465), (1395, 20511), (1431, 19995), (1643, 17415), (1935, 14787), (2279, 12555), (2385, 11997), (2511, 11395), (3483, 8215), (3999, 7155), (4185, 6837), (4293, 6665), (4929, 5805)]