257995740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{252937}}^1$

素因数の和:252966

約数の個数: 48

約数和(自身を含む): 764884512

約数和(自身を除く): 506888772

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 252937, 505874, 758811, 1011748, 1264685, 1517622, 2529370, 3035244, 3794055, 4299929, 5058740, 7588110, 8599858, 12899787, 15176220, 17199716, 21499645, 25799574, 42999290, 51599148, 64498935, 85998580, 128997870, 257995740]

約数ペア:

[(1, 257995740), (2, 128997870), (3, 85998580), (4, 64498935), (5, 51599148), (6, 42999290), (10, 25799574), (12, 21499645), (15, 17199716), (17, 15176220), (20, 12899787), (30, 8599858), (34, 7588110), (51, 5058740), (60, 4299929), (68, 3794055), (85, 3035244), (102, 2529370), (170, 1517622), (204, 1264685), (255, 1011748), (340, 758811), (510, 505874), (1020, 252937)]