128780568

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{255517}}^1$

素因数の和:255536

約数の個数: 48

約数和(自身を含む): 398608080

約数和(自身を除く): 269827512

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 255517, 511034, 766551, 1022068, 1533102, 1788619, 2044136, 2299653, 3066204, 3577238, 4599306, 5365857, 6132408, 7154476, 9198612, 10731714, 14308952, 16097571, 18397224, 21463428, 32195142, 42926856, 64390284, 128780568]

約数ペア:

[(1, 128780568), (2, 64390284), (3, 42926856), (4, 32195142), (6, 21463428), (7, 18397224), (8, 16097571), (9, 14308952), (12, 10731714), (14, 9198612), (18, 7154476), (21, 6132408), (24, 5365857), (28, 4599306), (36, 3577238), (42, 3066204), (56, 2299653), (63, 2044136), (72, 1788619), (84, 1533102), (126, 1022068), (168, 766551), (252, 511034), (504, 255517)]