71931470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1373}}^1$

素因数の和:1437

約数の個数: 48

約数和(自身を含む): 144830592

約数和(自身を除く): 72899122

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 169, 310, 338, 403, 806, 845, 1373, 1690, 2015, 2746, 4030, 5239, 6865, 10478, 13730, 17849, 26195, 35698, 42563, 52390, 85126, 89245, 178490, 212815, 232037, 425630, 464074, 553319, 1106638, 1160185, 2320370, 2766595, 5533190, 7193147, 14386294, 35965735, 71931470]

約数ペア:

[(1, 71931470), (2, 35965735), (5, 14386294), (10, 7193147), (13, 5533190), (26, 2766595), (31, 2320370), (62, 1160185), (65, 1106638), (130, 553319), (155, 464074), (169, 425630), (310, 232037), (338, 212815), (403, 178490), (806, 89245), (845, 85126), (1373, 52390), (1690, 42563), (2015, 35698), (2746, 26195), (4030, 17849), (5239, 13730), (6865, 10478)]