128720940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{1301}}^1$

素因数の和:1427

約数の個数: 96

約数和(自身を含む): 385850304

約数和(自身を除く): 257129364

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 97, 102, 170, 194, 204, 255, 291, 340, 388, 485, 510, 582, 970, 1020, 1164, 1301, 1455, 1649, 1940, 2602, 2910, 3298, 3903, 4947, 5204, 5820, 6505, 6596, 7806, 8245, 9894, 13010, 15612, 16490, 19515, 19788, 22117, 24735, 26020, 32980, 39030, 44234, 49470, 66351, 78060, 88468, 98940, 110585, 126197, 132702, 221170, 252394, 265404, 331755, 378591, 442340, 504788, 630985, 663510, 757182, 1261970, 1327020, 1514364, 1892955, 2145349, 2523940, 3785910, 4290698, 6436047, 7571820, 8581396, 10726745, 12872094, 21453490, 25744188, 32180235, 42906980, 64360470, 128720940]

約数ペア:

[(1, 128720940), (2, 64360470), (3, 42906980), (4, 32180235), (5, 25744188), (6, 21453490), (10, 12872094), (12, 10726745), (15, 8581396), (17, 7571820), (20, 6436047), (30, 4290698), (34, 3785910), (51, 2523940), (60, 2145349), (68, 1892955), (85, 1514364), (97, 1327020), (102, 1261970), (170, 757182), (194, 663510), (204, 630985), (255, 504788), (291, 442340), (340, 378591), (388, 331755), (485, 265404), (510, 252394), (582, 221170), (970, 132702), (1020, 126197), (1164, 110585), (1301, 98940), (1455, 88468), (1649, 78060), (1940, 66351), (2602, 49470), (2910, 44234), (3298, 39030), (3903, 32980), (4947, 26020), (5204, 24735), (5820, 22117), (6505, 19788), (6596, 19515), (7806, 16490), (8245, 15612), (9894, 13010)]