81406728

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{547}}^1$

素因数の和:628

約数の個数: 128

約数和(自身を含む): 248572800

約数和(自身を除く): 167166072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 53, 54, 72, 78, 104, 106, 108, 117, 156, 159, 212, 216, 234, 312, 318, 351, 424, 468, 477, 547, 636, 689, 702, 936, 954, 1094, 1272, 1378, 1404, 1431, 1641, 1908, 2067, 2188, 2756, 2808, 2862, 3282, 3816, 4134, 4376, 4923, 5512, 5724, 6201, 6564, 7111, 8268, 9846, 11448, 12402, 13128, 14222, 14769, 16536, 18603, 19692, 21333, 24804, 28444, 28991, 29538, 37206, 39384, 42666, 49608, 56888, 57982, 59076, 63999, 74412, 85332, 86973, 115964, 118152, 127998, 148824, 170664, 173946, 191997, 231928, 255996, 260919, 347892, 376883, 383994, 511992, 521838, 695784, 753766, 767988, 782757, 1043676, 1130649, 1507532, 1535976, 1565514, 2087352, 2261298, 3015064, 3131028, 3391947, 4522596, 6262056, 6783894, 9045192, 10175841, 13567788, 20351682, 27135576, 40703364, 81406728]

約数ペア:

[(1, 81406728), (2, 40703364), (3, 27135576), (4, 20351682), (6, 13567788), (8, 10175841), (9, 9045192), (12, 6783894), (13, 6262056), (18, 4522596), (24, 3391947), (26, 3131028), (27, 3015064), (36, 2261298), (39, 2087352), (52, 1565514), (53, 1535976), (54, 1507532), (72, 1130649), (78, 1043676), (104, 782757), (106, 767988), (108, 753766), (117, 695784), (156, 521838), (159, 511992), (212, 383994), (216, 376883), (234, 347892), (312, 260919), (318, 255996), (351, 231928), (424, 191997), (468, 173946), (477, 170664), (547, 148824), (636, 127998), (689, 118152), (702, 115964), (936, 86973), (954, 85332), (1094, 74412), (1272, 63999), (1378, 59076), (1404, 57982), (1431, 56888), (1641, 49608), (1908, 42666), (2067, 39384), (2188, 37206), (2756, 29538), (2808, 28991), (2862, 28444), (3282, 24804), (3816, 21333), (4134, 19692), (4376, 18603), (4923, 16536), (5512, 14769), (5724, 14222), (6201, 13128), (6564, 12402), (7111, 11448), (8268, 9846)]