20199691015

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1\times {\mathrm{761}}^1$

素因数の和:1112

約数の個数: 64

約数和(自身を含む): 28909670400

約数和(自身を除く): 8709979385

約数列:

[1, 5, 7, 35, 37, 103, 185, 199, 259, 515, 721, 761, 995, 1295, 1393, 3605, 3805, 3811, 5327, 6965, 7363, 19055, 20497, 26635, 26677, 28157, 36815, 51541, 78383, 102485, 133385, 140785, 143479, 151439, 197099, 257705, 391915, 548681, 717395, 757195, 758389, 985495, 1060073, 2743405, 2900171, 3791945, 5300365, 5308723, 5603243, 14500855, 15598217, 20301197, 26543615, 28016215, 39222701, 77991085, 101505985, 109187519, 196113505, 545937595, 577134029, 2885670145, 4039938203, 20199691015]

約数ペア:

[(1, 20199691015), (5, 4039938203), (7, 2885670145), (35, 577134029), (37, 545937595), (103, 196113505), (185, 109187519), (199, 101505985), (259, 77991085), (515, 39222701), (721, 28016215), (761, 26543615), (995, 20301197), (1295, 15598217), (1393, 14500855), (3605, 5603243), (3805, 5308723), (3811, 5300365), (5327, 3791945), (6965, 2900171), (7363, 2743405), (19055, 1060073), (20497, 985495), (26635, 758389), (26677, 757195), (28157, 717395), (36815, 548681), (51541, 391915), (78383, 257705), (102485, 197099), (133385, 151439), (140785, 143479)]