258988520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{132137}}^1$

素因数の和:132162

約数の個数: 48

約数和(自身を含む): 677867940

約数和(自身を除く): 418879420

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 132137, 264274, 528548, 660685, 924959, 1057096, 1321370, 1849918, 2642740, 3699836, 4624795, 5285480, 6474713, 7399672, 9249590, 12949426, 18499180, 25898852, 32373565, 36998360, 51797704, 64747130, 129494260, 258988520]

約数ペア:

[(1, 258988520), (2, 129494260), (4, 64747130), (5, 51797704), (7, 36998360), (8, 32373565), (10, 25898852), (14, 18499180), (20, 12949426), (28, 9249590), (35, 7399672), (40, 6474713), (49, 5285480), (56, 4624795), (70, 3699836), (98, 2642740), (140, 1849918), (196, 1321370), (245, 1057096), (280, 924959), (392, 660685), (490, 528548), (980, 264274), (1960, 132137)]