28090030

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:185

約数の個数: 48

約数和(自身を含む): 54336960

約数和(自身を除く): 26246930

約数列:

[1, 2, 5, 10, 31, 37, 62, 74, 79, 155, 158, 185, 310, 370, 395, 790, 961, 1147, 1922, 2294, 2449, 2923, 4805, 4898, 5735, 5846, 9610, 11470, 12245, 14615, 24490, 29230, 35557, 71114, 75919, 90613, 151838, 177785, 181226, 355570, 379595, 453065, 759190, 906130, 2809003, 5618006, 14045015, 28090030]

約数ペア:

[(1, 28090030), (2, 14045015), (5, 5618006), (10, 2809003), (31, 906130), (37, 759190), (62, 453065), (74, 379595), (79, 355570), (155, 181226), (158, 177785), (185, 151838), (310, 90613), (370, 75919), (395, 71114), (790, 35557), (961, 29230), (1147, 24490), (1922, 14615), (2294, 12245), (2449, 11470), (2923, 9610), (4805, 5846), (4898, 5735)]