261520308

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1619}}^1$

素因数の和:2277

約数の個数: 72

約数和(自身を含む): 757149120

約数和(自身を除く): 495628812

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 641, 1282, 1619, 1923, 2564, 3238, 3846, 4487, 4857, 5769, 6476, 7692, 8974, 9714, 11333, 11538, 13461, 14571, 17948, 19428, 22666, 23076, 26922, 29142, 33999, 40383, 45332, 53844, 58284, 67998, 80766, 101997, 135996, 161532, 203994, 407988, 1037779, 2075558, 3113337, 4151116, 6226674, 7264453, 9340011, 12453348, 14528906, 18680022, 21793359, 29057812, 37360044, 43586718, 65380077, 87173436, 130760154, 261520308]

約数ペア:

[(1, 261520308), (2, 130760154), (3, 87173436), (4, 65380077), (6, 43586718), (7, 37360044), (9, 29057812), (12, 21793359), (14, 18680022), (18, 14528906), (21, 12453348), (28, 9340011), (36, 7264453), (42, 6226674), (63, 4151116), (84, 3113337), (126, 2075558), (252, 1037779), (641, 407988), (1282, 203994), (1619, 161532), (1923, 135996), (2564, 101997), (3238, 80766), (3846, 67998), (4487, 58284), (4857, 53844), (5769, 45332), (6476, 40383), (7692, 33999), (8974, 29142), (9714, 26922), (11333, 23076), (11538, 22666), (13461, 19428), (14571, 17948)]