81556170

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{719}}^1$

素因数の和:947

約数の個数: 64

約数和(自身を含む): 207360000

約数和(自身を除く): 125803830

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 199, 285, 398, 570, 597, 719, 995, 1194, 1438, 1990, 2157, 2985, 3595, 3781, 4314, 5970, 7190, 7562, 10785, 11343, 13661, 18905, 21570, 22686, 27322, 37810, 40983, 56715, 68305, 81966, 113430, 136610, 143081, 204915, 286162, 409830, 429243, 715405, 858486, 1430810, 2146215, 2718539, 4292430, 5437078, 8155617, 13592695, 16311234, 27185390, 40778085, 81556170]

約数ペア:

[(1, 81556170), (2, 40778085), (3, 27185390), (5, 16311234), (6, 13592695), (10, 8155617), (15, 5437078), (19, 4292430), (30, 2718539), (38, 2146215), (57, 1430810), (95, 858486), (114, 715405), (190, 429243), (199, 409830), (285, 286162), (398, 204915), (570, 143081), (597, 136610), (719, 113430), (995, 81966), (1194, 68305), (1438, 56715), (1990, 40983), (2157, 37810), (2985, 27322), (3595, 22686), (3781, 21570), (4314, 18905), (5970, 13661), (7190, 11343), (7562, 10785)]