31997735

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{383}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 50429952

約数和(自身を除く): 18432217

約数列:

[1, 5, 7, 11, 31, 35, 49, 55, 77, 155, 217, 245, 341, 383, 385, 539, 1085, 1519, 1705, 1915, 2387, 2681, 2695, 4213, 7595, 11873, 11935, 13405, 16709, 18767, 21065, 29491, 59365, 83111, 83545, 93835, 130603, 147455, 206437, 415555, 581777, 653015, 914221, 1032185, 2908885, 4571105, 6399547, 31997735]

約数ペア:

[(1, 31997735), (5, 6399547), (7, 4571105), (11, 2908885), (31, 1032185), (35, 914221), (49, 653015), (55, 581777), (77, 415555), (155, 206437), (217, 147455), (245, 130603), (341, 93835), (383, 83545), (385, 83111), (539, 59365), (1085, 29491), (1519, 21065), (1705, 18767), (1915, 16709), (2387, 13405), (2681, 11935), (2695, 11873), (4213, 7595)]