80709520

素因数分解:

$2^4\times 5^1\times {\mathrm{971}}^1\times {\mathrm{1039}}^1$

素因数の和:2023

約数の個数: 40

約数和(自身を含む): 188023680

約数和(自身を除く): 107314160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 971, 1039, 1942, 2078, 3884, 4156, 4855, 5195, 7768, 8312, 9710, 10390, 15536, 16624, 19420, 20780, 38840, 41560, 77680, 83120, 1008869, 2017738, 4035476, 5044345, 8070952, 10088690, 16141904, 20177380, 40354760, 80709520]

約数ペア:

[(1, 80709520), (2, 40354760), (4, 20177380), (5, 16141904), (8, 10088690), (10, 8070952), (16, 5044345), (20, 4035476), (40, 2017738), (80, 1008869), (971, 83120), (1039, 77680), (1942, 41560), (2078, 38840), (3884, 20780), (4156, 19420), (4855, 16624), (5195, 15536), (7768, 10390), (8312, 9710)]