81319728

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{5903}}^1$

素因数の和:5962

約数の個数: 80

約数和(自身を含む): 245984256

約数和(自身を除く): 164664528

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 41, 42, 48, 56, 82, 84, 112, 123, 164, 168, 246, 287, 328, 336, 492, 574, 656, 861, 984, 1148, 1722, 1968, 2296, 3444, 4592, 5903, 6888, 11806, 13776, 17709, 23612, 35418, 41321, 47224, 70836, 82642, 94448, 123963, 141672, 165284, 242023, 247926, 283344, 330568, 484046, 495852, 661136, 726069, 968092, 991704, 1452138, 1694161, 1936184, 1983408, 2904276, 3388322, 3872368, 5082483, 5808552, 6776644, 10164966, 11617104, 13553288, 20329932, 27106576, 40659864, 81319728]

約数ペア:

[(1, 81319728), (2, 40659864), (3, 27106576), (4, 20329932), (6, 13553288), (7, 11617104), (8, 10164966), (12, 6776644), (14, 5808552), (16, 5082483), (21, 3872368), (24, 3388322), (28, 2904276), (41, 1983408), (42, 1936184), (48, 1694161), (56, 1452138), (82, 991704), (84, 968092), (112, 726069), (123, 661136), (164, 495852), (168, 484046), (246, 330568), (287, 283344), (328, 247926), (336, 242023), (492, 165284), (574, 141672), (656, 123963), (861, 94448), (984, 82642), (1148, 70836), (1722, 47224), (1968, 41321), (2296, 35418), (3444, 23612), (4592, 17709), (5903, 13776), (6888, 11806)]