20278030

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{65413}}^1$

素因数の和:65451

約数の個数: 16

約数和(自身を含む): 37678464

約数和(自身を除く): 17400434

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 65413, 130826, 327065, 654130, 2027803, 4055606, 10139015, 20278030]

約数ペア:

[(1, 20278030), (2, 10139015), (5, 4055606), (10, 2027803), (31, 654130), (62, 327065), (155, 130826), (310, 65413)]