20131625215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2081}}^1\times {\mathrm{4801}}^1$

素因数の和:6931

約数の個数: 32

約数和(自身を含む): 26873989632

約数和(自身を除く): 6742364417

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 2081, 4801, 10405, 24005, 27053, 62413, 64511, 135265, 148831, 312065, 322555, 744155, 838643, 1934803, 4193215, 9674015, 9990881, 49954405, 129881453, 309717311, 649407265, 1548586555, 4026325043, 20131625215]

約数ペア:

[(1, 20131625215), (5, 4026325043), (13, 1548586555), (31, 649407265), (65, 309717311), (155, 129881453), (403, 49954405), (2015, 9990881), (2081, 9674015), (4801, 4193215), (10405, 1934803), (24005, 838643), (27053, 744155), (62413, 322555), (64511, 312065), (135265, 148831)]