81975530

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{757}}^1$

素因数の和:808

約数の個数: 96

約数和(自身を含む): 195982416

約数和(自身を除く): 114006886

約数列:

[1, 2, 5, 7, 10, 13, 14, 17, 26, 34, 35, 49, 65, 70, 85, 91, 98, 119, 130, 170, 182, 221, 238, 245, 442, 455, 490, 595, 637, 757, 833, 910, 1105, 1190, 1274, 1514, 1547, 1666, 2210, 3094, 3185, 3785, 4165, 5299, 6370, 7570, 7735, 8330, 9841, 10598, 10829, 12869, 15470, 19682, 21658, 25738, 26495, 37093, 49205, 52990, 54145, 64345, 68887, 74186, 90083, 98410, 108290, 128690, 137774, 167297, 180166, 185465, 334594, 344435, 370930, 450415, 482209, 630581, 688870, 836485, 900830, 964418, 1171079, 1261162, 1672970, 2342158, 2411045, 3152905, 4822090, 5855395, 6305810, 8197553, 11710790, 16395106, 40987765, 81975530]

約数ペア:

[(1, 81975530), (2, 40987765), (5, 16395106), (7, 11710790), (10, 8197553), (13, 6305810), (14, 5855395), (17, 4822090), (26, 3152905), (34, 2411045), (35, 2342158), (49, 1672970), (65, 1261162), (70, 1171079), (85, 964418), (91, 900830), (98, 836485), (119, 688870), (130, 630581), (170, 482209), (182, 450415), (221, 370930), (238, 344435), (245, 334594), (442, 185465), (455, 180166), (490, 167297), (595, 137774), (637, 128690), (757, 108290), (833, 98410), (910, 90083), (1105, 74186), (1190, 68887), (1274, 64345), (1514, 54145), (1547, 52990), (1666, 49205), (2210, 37093), (3094, 26495), (3185, 25738), (3785, 21658), (4165, 19682), (5299, 15470), (6370, 12869), (7570, 10829), (7735, 10598), (8330, 9841)]