855777748

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{977}}^1$

素因数の和:1145

約数の個数: 72

約数和(自身を含む): 1802825640

約数和(自身を除く): 947047892

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 82, 98, 109, 164, 196, 218, 287, 436, 574, 763, 977, 1148, 1526, 1954, 2009, 3052, 3908, 4018, 4469, 5341, 6839, 8036, 8938, 10682, 13678, 17876, 21364, 27356, 31283, 40057, 47873, 62566, 80114, 95746, 106493, 125132, 160228, 191492, 212986, 218981, 280399, 425972, 437962, 560798, 745451, 875924, 1121596, 1490902, 1962793, 2981804, 3925586, 4366213, 5218157, 7851172, 8732426, 10436314, 17464852, 20872628, 30563491, 61126982, 122253964, 213944437, 427888874, 855777748]

約数ペア:

[(1, 855777748), (2, 427888874), (4, 213944437), (7, 122253964), (14, 61126982), (28, 30563491), (41, 20872628), (49, 17464852), (82, 10436314), (98, 8732426), (109, 7851172), (164, 5218157), (196, 4366213), (218, 3925586), (287, 2981804), (436, 1962793), (574, 1490902), (763, 1121596), (977, 875924), (1148, 745451), (1526, 560798), (1954, 437962), (2009, 425972), (3052, 280399), (3908, 218981), (4018, 212986), (4469, 191492), (5341, 160228), (6839, 125132), (8036, 106493), (8938, 95746), (10682, 80114), (13678, 62566), (17876, 47873), (21364, 40057), (27356, 31283)]