26805220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{787}}^1$

素因数の和:940

約数の個数: 48

約数和(自身を含む): 61161408

約数和(自身を除く): 34356188

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 787, 1310, 1574, 1703, 2620, 3148, 3406, 3935, 6812, 7870, 8515, 10231, 15740, 17030, 20462, 34060, 40924, 51155, 102310, 103097, 204620, 206194, 412388, 515485, 1030970, 1340261, 2061940, 2680522, 5361044, 6701305, 13402610, 26805220]

約数ペア:

[(1, 26805220), (2, 13402610), (4, 6701305), (5, 5361044), (10, 2680522), (13, 2061940), (20, 1340261), (26, 1030970), (52, 515485), (65, 412388), (130, 206194), (131, 204620), (260, 103097), (262, 102310), (524, 51155), (655, 40924), (787, 34060), (1310, 20462), (1574, 17030), (1703, 15740), (2620, 10231), (3148, 8515), (3406, 7870), (3935, 6812)]