81432380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{4519}}^1$

素因数の和:4598

約数の個数: 48

約数和(自身を含む): 184524480

約数和(自身を除く): 103092100

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 170, 212, 265, 340, 530, 901, 1060, 1802, 3604, 4505, 4519, 9010, 9038, 18020, 18076, 22595, 45190, 76823, 90380, 153646, 239507, 307292, 384115, 479014, 768230, 958028, 1197535, 1536460, 2395070, 4071619, 4790140, 8143238, 16286476, 20358095, 40716190, 81432380]

約数ペア:

[(1, 81432380), (2, 40716190), (4, 20358095), (5, 16286476), (10, 8143238), (17, 4790140), (20, 4071619), (34, 2395070), (53, 1536460), (68, 1197535), (85, 958028), (106, 768230), (170, 479014), (212, 384115), (265, 307292), (340, 239507), (530, 153646), (901, 90380), (1060, 76823), (1802, 45190), (3604, 22595), (4505, 18076), (4519, 18020), (9010, 9038)]