131292520

素因数分解:

$2^3\times 5^1\times {\mathrm{1171}}^1\times {\mathrm{2803}}^1$

素因数の和:3985

約数の個数: 32

約数和(自身を含む): 295765920

約数和(自身を除く): 164473400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1171, 2342, 2803, 4684, 5606, 5855, 9368, 11212, 11710, 14015, 22424, 23420, 28030, 46840, 56060, 112120, 3282313, 6564626, 13129252, 16411565, 26258504, 32823130, 65646260, 131292520]

約数ペア:

[(1, 131292520), (2, 65646260), (4, 32823130), (5, 26258504), (8, 16411565), (10, 13129252), (20, 6564626), (40, 3282313), (1171, 112120), (2342, 56060), (2803, 46840), (4684, 28030), (5606, 23420), (5855, 22424), (9368, 14015), (11212, 11710)]